Home / 11,073.24-16,591.36-7,780.43

Finding the Fourth Proportional to 11,073.24, 16,591.36 and 7,780.43

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Solution

The fourth proportional to 11,073.24, 16,591.36 and 7,780.43 is: 11,657.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,073.24 : 16,591.36 = 7,780.43 : x
  2. Step 2: Convert to fraction form
    11,073.24/16,591.36 = 7,780.43/x
  3. Step 3: Cross multiply
    11,073.24x = 16,591.36 × 7,780.43
  4. Step 4: Simplify right side
    11,073.24x = 129,087,876.18
  5. Step 5: Solve for x
    x = 129,087,876.18/11,073.24
  6. Step 6: Final answer
    x = 11,657.65

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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.