Home / 15,711.20-23,563.15-4,614.90

Finding the Fourth Proportional to 15,711.20, 23,563.15 and 4,614.90

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Solution

The fourth proportional to 15,711.20, 23,563.15 and 4,614.90 is: 6,921.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,711.20 : 23,563.15 = 4,614.90 : x
  2. Step 2: Convert to fraction form
    15,711.20/23,563.15 = 4,614.90/x
  3. Step 3: Cross multiply
    15,711.20x = 23,563.15 × 4,614.90
  4. Step 4: Simplify right side
    15,711.20x = 108,741,557.86
  5. Step 5: Solve for x
    x = 108,741,557.86/15,711.20
  6. Step 6: Final answer
    x = 6,921.28

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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.