Home / 21,786.12-32,675.16-9,937.20

Finding the Fourth Proportional to 21,786.12, 32,675.16 and 9,937.20

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Solution

The fourth proportional to 21,786.12, 32,675.16 and 9,937.20 is: 14,903.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,786.12 : 32,675.16 = 9,937.20 : x
  2. Step 2: Convert to fraction form
    21,786.12/32,675.16 = 9,937.20/x
  3. Step 3: Cross multiply
    21,786.12x = 32,675.16 × 9,937.20
  4. Step 4: Simplify right side
    21,786.12x = 324,699,599.95
  5. Step 5: Solve for x
    x = 324,699,599.95/21,786.12
  6. Step 6: Final answer
    x = 14,903.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.