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Finding the Fourth Proportional to 18,159.56, 27,242.08 and 6,471.88

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Solution

The fourth proportional to 18,159.56, 27,242.08 and 6,471.88 is: 9,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,159.56 : 27,242.08 = 6,471.88 : x
  2. Step 2: Convert to fraction form
    18,159.56/27,242.08 = 6,471.88/x
  3. Step 3: Cross multiply
    18,159.56x = 27,242.08 × 6,471.88
  4. Step 4: Simplify right side
    18,159.56x = 176,307,472.71
  5. Step 5: Solve for x
    x = 176,307,472.71/18,159.56
  6. Step 6: Final answer
    x = 9,708.80

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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.