Question

check whether 3:9 and 4:12 are in proportion or not .​

Answer 1

Answer:

In Proportion

Step-by-step explanation:

3:9::4:12

In Proportion,

Product of mean terms = Product of extreme terms

Mean terms = 9 and 4

Extreme terms = 3 and 12

L.H.S = 9 × 4 = 36

R.H.S = 3 × 12 = 36

L.H.S = R.H.S

Therefore, 3:9 and 4:12 are in proportion.