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Finding the Fourth Proportional to 18,273.97, 27,412.01 and 5,127.38

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Solution

The fourth proportional to 18,273.97, 27,412.01 and 5,127.38 is: 7,691.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,273.97 : 27,412.01 = 5,127.38 : x
  2. Step 2: Convert to fraction form
    18,273.97/27,412.01 = 5,127.38/x
  3. Step 3: Cross multiply
    18,273.97x = 27,412.01 × 5,127.38
  4. Step 4: Simplify right side
    18,273.97x = 140,551,791.83
  5. Step 5: Solve for x
    x = 140,551,791.83/18,273.97
  6. Step 6: Final answer
    x = 7,691.37

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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.