Question

What number must be added to each of the numbers 5, 7, 9, 12 to get the numbers which are in proportion.

Answer 1

Answer:

3

Hence, 3 must be added to each of the numbers: 5, 9, 7 and 12, to get the numbers which are in proportion.

Answer 2

Answer:

3

Step-by-step explanation:

if yu add 3

u ill get

8:10::12:15