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Finding the Fourth Proportional to 18,455.67, 27,687.89 and 5,975.70

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Solution

The fourth proportional to 18,455.67, 27,687.89 and 5,975.70 is: 8,964.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,455.67 : 27,687.89 = 5,975.70 : x
  2. Step 2: Convert to fraction form
    18,455.67/27,687.89 = 5,975.70/x
  3. Step 3: Cross multiply
    18,455.67x = 27,687.89 × 5,975.70
  4. Step 4: Simplify right side
    18,455.67x = 165,454,524.27
  5. Step 5: Solve for x
    x = 165,454,524.27/18,455.67
  6. Step 6: Final answer
    x = 8,964.97

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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.