Home / 13,248.65-19,872.92-3,387.92

Finding the Fourth Proportional to 13,248.65, 19,872.92 and 3,387.92

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Solution

The fourth proportional to 13,248.65, 19,872.92 and 3,387.92 is: 5,081.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.65 : 19,872.92 = 3,387.92 : x
  2. Step 2: Convert to fraction form
    13,248.65/19,872.92 = 3,387.92/x
  3. Step 3: Cross multiply
    13,248.65x = 19,872.92 × 3,387.92
  4. Step 4: Simplify right side
    13,248.65x = 67,327,863.13
  5. Step 5: Solve for x
    x = 67,327,863.13/13,248.65
  6. Step 6: Final answer
    x = 5,081.87

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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.