Home / 13,242.62-19,863.92-3,381.90

Finding the Fourth Proportional to 13,242.62, 19,863.92 and 3,381.90

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Solution

The fourth proportional to 13,242.62, 19,863.92 and 3,381.90 is: 5,072.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.62 : 19,863.92 = 3,381.90 : x
  2. Step 2: Convert to fraction form
    13,242.62/19,863.92 = 3,381.90/x
  3. Step 3: Cross multiply
    13,242.62x = 19,863.92 × 3,381.90
  4. Step 4: Simplify right side
    13,242.62x = 67,177,791.05
  5. Step 5: Solve for x
    x = 67,177,791.05/13,242.62
  6. Step 6: Final answer
    x = 5,072.85

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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.