Home / 13,658.28-20,487.82-5,337.96

Finding the Fourth Proportional to 13,658.28, 20,487.82 and 5,337.96

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Solution

The fourth proportional to 13,658.28, 20,487.82 and 5,337.96 is: 8,007.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,658.28 : 20,487.82 = 5,337.96 : x
  2. Step 2: Convert to fraction form
    13,658.28/20,487.82 = 5,337.96/x
  3. Step 3: Cross multiply
    13,658.28x = 20,487.82 × 5,337.96
  4. Step 4: Simplify right side
    13,658.28x = 109,363,163.65
  5. Step 5: Solve for x
    x = 109,363,163.65/13,658.28
  6. Step 6: Final answer
    x = 8,007.10

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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.