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Finding the Fourth Proportional to 18,377.96, 27,545.06 and 12,801.10

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Solution

The fourth proportional to 18,377.96, 27,545.06 and 12,801.10 is: 19,186.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,377.96 : 27,545.06 = 12,801.10 : x
  2. Step 2: Convert to fraction form
    18,377.96/27,545.06 = 12,801.10/x
  3. Step 3: Cross multiply
    18,377.96x = 27,545.06 × 12,801.10
  4. Step 4: Simplify right side
    18,377.96x = 352,607,067.57
  5. Step 5: Solve for x
    x = 352,607,067.57/18,377.96
  6. Step 6: Final answer
    x = 19,186.41

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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.