Proportion Practice
An endless supply of never-repeating proportion problems with instant feedback. Solve for x wherever it hides, test true-or-false proportions, and work map, recipe, and rate problems — one at a time.
1 Practice
Type your answer and press Check answer (or Enter). A wrong answer earns a hint first; a second miss walks you through the full solution.
How to enter answers
- Numbers: an integer (
3), a fraction (2/3), or a decimal (12.7). - True or false:
yesorno. - Finish the algebra — enter the value of x, not the cross-product equation.
2 What you’ll practice
Every problem is generated fresh from 11 templates across three question types — a problem never repeats until its whole pool is used up.
Solve for x
Cross-multiply and solve, wherever x hides — numerator, denominator, or inside a two-step expression.
True or false?
Test proportions with cross-products before you trust them.
Word problems
Map scales, recipes, fuel economy, unit conversion, and scale models — units lined up on both sides.
3 Watch out for these
The three mistakes students make most often on proportion problems.
Wrong: a × c = b × d. Right: a × d = b × c — diagonal pairs. Draw the X.
Wrong: eggs/pancakes = pancakes/eggs. Right: the same units in the same positions on both sides.
Wrong: “20x = 60” as the final answer. Right: finish it: x = 3.