Home / 10,913.43-16,370.15-8,711.85

Finding the Fourth Proportional to 10,913.43, 16,370.15 and 8,711.85

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Solution

The fourth proportional to 10,913.43, 16,370.15 and 8,711.85 is: 13,067.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.43 : 16,370.15 = 8,711.85 : x
  2. Step 2: Convert to fraction form
    10,913.43/16,370.15 = 8,711.85/x
  3. Step 3: Cross multiply
    10,913.43x = 16,370.15 × 8,711.85
  4. Step 4: Simplify right side
    10,913.43x = 142,614,358.11
  5. Step 5: Solve for x
    x = 142,614,358.11/10,913.43
  6. Step 6: Final answer
    x = 13,067.78

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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.