Question

check if 9:4::18:8 are in proportion or not​

Answer 1

Step-by-step explanation:

9 : 4 : : 18 : 8

9/4 = 18/8

(cross multiplication)

9 × 8 = 18 × 4

72 = 72

Yes, they are in proportion

Answer 2

Answer:

9:4 and 18:8 are proportional

Step-by-step explanation:

18:8 is th e double of 9:4

9:4

9×2 : 4×2

18 : 8

So they are proportional