Solve the proportion
Key Notes :
Two equivalent ratios form a proportion.
Equivalent ratios have the same value.
Learn with an example
✏️ Solve for g in the proportion.
21/g = 7/16
g = ____
Solve for g in the proportion.
21/g = 7/16
21/g ( 16g ) = 7/16 ( 16g ) Multiply both sides by 16g
16 · 21 = 7g Simplify
336 = 7g Simplify
48 = g Divide both sides by 7
✏️ Solve for y in the proportion.
y/32 = 45/36
y = _____
Solve for y in the proportion.
y/32 = 45/36
y/32 ( 32 . 36 ) = 45/36 ( 32 . 36 ) Multiply both sides by 32 · 36
36y = 45 · 32 Simplify
36y = 1,440 Simplify
y = 40 Divide both sides by 36
✏️ Solve for d in the proportion.
d/26 = 18/12
d = ____
Solve for d in the proportion.
d/26 = 18/12
d/26 ( 26.12 ) = 18/12 ( 26 . 12 ) Multiply both sides by 26 · 12
12d = 18 · 26 Simplify
12d = 468 Simplify
d = 39 Divide both sides by 12
let’s practice! 🖊️