Home / 16,688.70-25,000.65-9,279.90

Finding the Fourth Proportional to 16,688.70, 25,000.65 and 9,279.90

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Solution

The fourth proportional to 16,688.70, 25,000.65 and 9,279.90 is: 13,901.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,688.70 : 25,000.65 = 9,279.90 : x
  2. Step 2: Convert to fraction form
    16,688.70/25,000.65 = 9,279.90/x
  3. Step 3: Cross multiply
    16,688.70x = 25,000.65 × 9,279.90
  4. Step 4: Simplify right side
    16,688.70x = 232,003,531.94
  5. Step 5: Solve for x
    x = 232,003,531.94/16,688.70
  6. Step 6: Final answer
    x = 13,901.83

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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.