Solve a proportion a/b = c/d for the missing value — scale one ratio to match the other.
The challenge is to find the unknown in a proportion — given three of the four values in a/b = c/d, a child scales one ratio until it matches the other. Practice targets proportion-solving and ratio reasoning, connecting multiplicative thinking to early algebraic structure. Suited to Grade 6, or any student who has mastered equivalent ratios and is ready for the next step.
A free, no-signup, no-ads math game for Grade 6 — practising proportion, ratios. Play in your browser on the KidsDoMath games hub or explore more Ratios & Rates games.
More like this: Unit Rate Racer · Scale Scout · Ratio Rancher.