Home / 13,248.27-19,872.20-3,387.47

Finding the Fourth Proportional to 13,248.27, 19,872.20 and 3,387.47

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Solution

The fourth proportional to 13,248.27, 19,872.20 and 3,387.47 is: 5,081.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.27 : 19,872.20 = 3,387.47 : x
  2. Step 2: Convert to fraction form
    13,248.27/19,872.20 = 3,387.47/x
  3. Step 3: Cross multiply
    13,248.27x = 19,872.20 × 3,387.47
  4. Step 4: Simplify right side
    13,248.27x = 67,316,390.44
  5. Step 5: Solve for x
    x = 67,316,390.44/13,248.27
  6. Step 6: Final answer
    x = 5,081.15

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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.