Home / 15,489.68-23,234.55-6,131.90

Finding the Fourth Proportional to 15,489.68, 23,234.55 and 6,131.90

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Solution

The fourth proportional to 15,489.68, 23,234.55 and 6,131.90 is: 9,197.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,489.68 : 23,234.55 = 6,131.90 : x
  2. Step 2: Convert to fraction form
    15,489.68/23,234.55 = 6,131.90/x
  3. Step 3: Cross multiply
    15,489.68x = 23,234.55 × 6,131.90
  4. Step 4: Simplify right side
    15,489.68x = 142,471,972.24
  5. Step 5: Solve for x
    x = 142,471,972.24/15,489.68
  6. Step 6: Final answer
    x = 9,197.86

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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.