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Finding the Fourth Proportional to 18,040, 27,060 and 6,351.88

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Solution

The fourth proportional to 18,040, 27,060 and 6,351.88 is: 9,527.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,040 : 27,060 = 6,351.88 : x
  2. Step 2: Convert to fraction form
    18,040/27,060 = 6,351.88/x
  3. Step 3: Cross multiply
    18,040x = 27,060 × 6,351.88
  4. Step 4: Simplify right side
    18,040x = 171,881,872.80
  5. Step 5: Solve for x
    x = 171,881,872.80/18,040
  6. Step 6: Final answer
    x = 9,527.82

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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.