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Finding the Fourth Proportional to 18,042.46, 27,067.78 and 6,355.78

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Solution

The fourth proportional to 18,042.46, 27,067.78 and 6,355.78 is: 9,535.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,042.46 : 27,067.78 = 6,355.78 : x
  2. Step 2: Convert to fraction form
    18,042.46/27,067.78 = 6,355.78/x
  3. Step 3: Cross multiply
    18,042.46x = 27,067.78 × 6,355.78
  4. Step 4: Simplify right side
    18,042.46x = 172,036,854.77
  5. Step 5: Solve for x
    x = 172,036,854.77/18,042.46
  6. Step 6: Final answer
    x = 9,535.11

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1.5x scale

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.