Question

4. Find the value of unknown term in the following proportion.
(i) x: 5= 3:10 (ii) 12: x = 24 : 2
(iii) 8:15 = x: 30 (iv) 9:18 = 7: xanswer in full method and all question ​

Answer 1

Answer:

(1) x=3/2

(2) x=1

(3)x=16

(4) x=14

Answer 2

Hey friend,

Here is the solution :-

1. ⤵

$\frac{x}{5} = \frac{3}{10} \\ \\ 10 \times x = 3 \times 5\\ \\ 10x = 15 \\ \\ x = \frac{15}{10} = \frac{3}{2}$

2. ⤵

$\frac{12}{x} = \frac{24}{2} \\ \\ 24 \times x = 12 \times 2 \\ \\ 24x = 24 \\ \\ x = \frac{24}{24} = 1$

3. ⤵

$\frac{8}{15} = \frac{x}{30} \\ \\ 30 \times 8 = x \times 15 \\ \\ 240 = 15x \\ \\ x = \frac{240}{15} = 16$

4. ⤵

$\frac{9}{18} = \frac{7}{x} \\ \\ 9 \times x = 7 \times 18 \\ \\ 9x = 126 \\ \\ x = \frac{126}{9} = 14$

✨I hope this will help you....✨