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Finding the Fourth Proportional to 18,001.25, 27,007.05 and 5,523.11

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Solution

The fourth proportional to 18,001.25, 27,007.05 and 5,523.11 is: 8,286.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,001.25 : 27,007.05 = 5,523.11 : x
  2. Step 2: Convert to fraction form
    18,001.25/27,007.05 = 5,523.11/x
  3. Step 3: Cross multiply
    18,001.25x = 27,007.05 × 5,523.11
  4. Step 4: Simplify right side
    18,001.25x = 149,162,772.89
  5. Step 5: Solve for x
    x = 149,162,772.89/18,001.25
  6. Step 6: Final answer
    x = 8,286.25

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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.