Home / 12,207.11-18,308.61-3,439.97

Finding the Fourth Proportional to 12,207.11, 18,308.61 and 3,439.97

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Solution

The fourth proportional to 12,207.11, 18,308.61 and 3,439.97 is: 5,159.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.11 : 18,308.61 = 3,439.97 : x
  2. Step 2: Convert to fraction form
    12,207.11/18,308.61 = 3,439.97/x
  3. Step 3: Cross multiply
    12,207.11x = 18,308.61 × 3,439.97
  4. Step 4: Simplify right side
    12,207.11x = 62,981,036.58
  5. Step 5: Solve for x
    x = 62,981,036.58/12,207.11
  6. Step 6: Final answer
    x = 5,159.38

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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.