Home / 16,686.92-25,033.15-7,917.05

Finding the Fourth Proportional to 16,686.92, 25,033.15 and 7,917.05

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Solution

The fourth proportional to 16,686.92, 25,033.15 and 7,917.05 is: 11,876.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,686.92 : 25,033.15 = 7,917.05 : x
  2. Step 2: Convert to fraction form
    16,686.92/25,033.15 = 7,917.05/x
  3. Step 3: Cross multiply
    16,686.92x = 25,033.15 × 7,917.05
  4. Step 4: Simplify right side
    16,686.92x = 198,188,700.21
  5. Step 5: Solve for x
    x = 198,188,700.21/16,686.92
  6. Step 6: Final answer
    x = 11,876.89

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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.