Home / 11,279.54-16,921.11-3,882.17

Finding the Fourth Proportional to 11,279.54, 16,921.11 and 3,882.17

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Solution

The fourth proportional to 11,279.54, 16,921.11 and 3,882.17 is: 5,823.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.54 : 16,921.11 = 3,882.17 : x
  2. Step 2: Convert to fraction form
    11,279.54/16,921.11 = 3,882.17/x
  3. Step 3: Cross multiply
    11,279.54x = 16,921.11 × 3,882.17
  4. Step 4: Simplify right side
    11,279.54x = 65,690,625.61
  5. Step 5: Solve for x
    x = 65,690,625.61/11,279.54
  6. Step 6: Final answer
    x = 5,823.87

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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.