Home / 18,001.39-27,003.15-5,521.54

Finding the Fourth Proportional to 18,001.39, 27,003.15 and 5,521.54

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Solution

The fourth proportional to 18,001.39, 27,003.15 and 5,521.54 is: 8,282.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,001.39 : 27,003.15 = 5,521.54 : x
  2. Step 2: Convert to fraction form
    18,001.39/27,003.15 = 5,521.54/x
  3. Step 3: Cross multiply
    18,001.39x = 27,003.15 × 5,521.54
  4. Step 4: Simplify right side
    18,001.39x = 149,098,972.85
  5. Step 5: Solve for x
    x = 149,098,972.85/18,001.39
  6. Step 6: Final answer
    x = 8,282.64

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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.