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Finding the Fourth Proportional to 18,149.31, 27,227.03 and 7,055.78

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Solution

The fourth proportional to 18,149.31, 27,227.03 and 7,055.78 is: 10,584.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,149.31 : 27,227.03 = 7,055.78 : x
  2. Step 2: Convert to fraction form
    18,149.31/27,227.03 = 7,055.78/x
  3. Step 3: Cross multiply
    18,149.31x = 27,227.03 × 7,055.78
  4. Step 4: Simplify right side
    18,149.31x = 192,107,762.32
  5. Step 5: Solve for x
    x = 192,107,762.32/18,149.31
  6. Step 6: Final answer
    x = 10,584.85

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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.