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Finding the Fourth Proportional to 6,687.92, 10,020 and 5,704.04

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Solution

The fourth proportional to 6,687.92, 10,020 and 5,704.04 is: 8,545.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,687.92 : 10,020 = 5,704.04 : x
  2. Step 2: Convert to fraction form
    6,687.92/10,020 = 5,704.04/x
  3. Step 3: Cross multiply
    6,687.92x = 10,020 × 5,704.04
  4. Step 4: Simplify right side
    6,687.92x = 57,154,480.80
  5. Step 5: Solve for x
    x = 57,154,480.80/6,687.92
  6. Step 6: Final answer
    x = 8,545.93

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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.