Home / 18,081.75-27,123.11-5,769.75

Finding the Fourth Proportional to 18,081.75, 27,123.11 and 5,769.75

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Solution

The fourth proportional to 18,081.75, 27,123.11 and 5,769.75 is: 8,654.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,081.75 : 27,123.11 = 5,769.75 : x
  2. Step 2: Convert to fraction form
    18,081.75/27,123.11 = 5,769.75/x
  3. Step 3: Cross multiply
    18,081.75x = 27,123.11 × 5,769.75
  4. Step 4: Simplify right side
    18,081.75x = 156,493,535.07
  5. Step 5: Solve for x
    x = 156,493,535.07/18,081.75
  6. Step 6: Final answer
    x = 8,654.78

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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.