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Finding the Fourth Proportional to 18,101.37, 27,155.80 and 8,747.90

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Solution

The fourth proportional to 18,101.37, 27,155.80 and 8,747.90 is: 13,123.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,101.37 : 27,155.80 = 8,747.90 : x
  2. Step 2: Convert to fraction form
    18,101.37/27,155.80 = 8,747.90/x
  3. Step 3: Cross multiply
    18,101.37x = 27,155.80 × 8,747.90
  4. Step 4: Simplify right side
    18,101.37x = 237,556,087.04
  5. Step 5: Solve for x
    x = 237,556,087.04/18,101.37
  6. Step 6: Final answer
    x = 13,123.65

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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.