Home / 11,251.91-16,877.87-2,931.90

Finding the Fourth Proportional to 11,251.91, 16,877.87 and 2,931.90

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Solution

The fourth proportional to 11,251.91, 16,877.87 and 2,931.90 is: 4,397.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,251.91 : 16,877.87 = 2,931.90 : x
  2. Step 2: Convert to fraction form
    11,251.91/16,877.87 = 2,931.90/x
  3. Step 3: Cross multiply
    11,251.91x = 16,877.87 × 2,931.90
  4. Step 4: Simplify right side
    11,251.91x = 49,484,212.39
  5. Step 5: Solve for x
    x = 49,484,212.39/11,251.91
  6. Step 6: Final answer
    x = 4,397.85

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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.