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Finding the Fourth Proportional to 18,234.79, 27,352.19 and 5,755.79

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Solution

The fourth proportional to 18,234.79, 27,352.19 and 5,755.79 is: 8,633.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,234.79 : 27,352.19 = 5,755.79 : x
  2. Step 2: Convert to fraction form
    18,234.79/27,352.19 = 5,755.79/x
  3. Step 3: Cross multiply
    18,234.79x = 27,352.19 × 5,755.79
  4. Step 4: Simplify right side
    18,234.79x = 157,433,461.68
  5. Step 5: Solve for x
    x = 157,433,461.68/18,234.79
  6. Step 6: Final answer
    x = 8,633.69

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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.