Question

10. Find the value of x so that the given four numbers are in proportion:
I (a)x, 6, 10 and 15 (b) 9, 12, x and 8
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Answer 1

Answer:25 and9/2

Step-by-step explanation:

Answer 2

Step-by-step explanation:

(a) solution = x:6::10:15

x/6 = 10/15

x × 15 = 6 × 10

15x = 60

x = 60/15

x = 4

Therefore , x = 4.........

( b ) solution = 9:12::x:8

9/12 = x/8

9 × 8 = 12 × x

72 = 12x

x = 72/12

x = 6

Therefore , x = 6..........