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Finding the Fourth Proportional to 18,006.30, 27,009.52 and 8,134.02

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Solution

The fourth proportional to 18,006.30, 27,009.52 and 8,134.02 is: 12,201.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,006.30 : 27,009.52 = 8,134.02 : x
  2. Step 2: Convert to fraction form
    18,006.30/27,009.52 = 8,134.02/x
  3. Step 3: Cross multiply
    18,006.30x = 27,009.52 × 8,134.02
  4. Step 4: Simplify right side
    18,006.30x = 219,695,955.54
  5. Step 5: Solve for x
    x = 219,695,955.54/18,006.30
  6. Step 6: Final answer
    x = 12,201.06

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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.