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Finding the Fourth Proportional to 18,080.20, 27,098.70 and 9,310.60

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Solution

The fourth proportional to 18,080.20, 27,098.70 and 9,310.60 is: 13,954.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,080.20 : 27,098.70 = 9,310.60 : x
  2. Step 2: Convert to fraction form
    18,080.20/27,098.70 = 9,310.60/x
  3. Step 3: Cross multiply
    18,080.20x = 27,098.70 × 9,310.60
  4. Step 4: Simplify right side
    18,080.20x = 252,305,156.22
  5. Step 5: Solve for x
    x = 252,305,156.22/18,080.20
  6. Step 6: Final answer
    x = 13,954.78

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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.