Home / 9,134.85-13,700.12-3,937.89

Finding the Fourth Proportional to 9,134.85, 13,700.12 and 3,937.89

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Solution

The fourth proportional to 9,134.85, 13,700.12 and 3,937.89 is: 5,905.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,134.85 : 13,700.12 = 3,937.89 : x
  2. Step 2: Convert to fraction form
    9,134.85/13,700.12 = 3,937.89/x
  3. Step 3: Cross multiply
    9,134.85x = 13,700.12 × 3,937.89
  4. Step 4: Simplify right side
    9,134.85x = 53,949,545.86
  5. Step 5: Solve for x
    x = 53,949,545.86/9,134.85
  6. Step 6: Final answer
    x = 5,905.90

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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.