Home / 14,115.16-21,132.42-9,489.88

Finding the Fourth Proportional to 14,115.16, 21,132.42 and 9,489.88

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Solution

The fourth proportional to 14,115.16, 21,132.42 and 9,489.88 is: 14,207.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.16 : 21,132.42 = 9,489.88 : x
  2. Step 2: Convert to fraction form
    14,115.16/21,132.42 = 9,489.88/x
  3. Step 3: Cross multiply
    14,115.16x = 21,132.42 × 9,489.88
  4. Step 4: Simplify right side
    14,115.16x = 200,544,129.91
  5. Step 5: Solve for x
    x = 200,544,129.91/14,115.16
  6. Step 6: Final answer
    x = 14,207.71

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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.