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Finding the Fourth Proportional to 18,081.52, 27,125.92 and 6,402.94

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Solution

The fourth proportional to 18,081.52, 27,125.92 and 6,402.94 is: 9,605.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,081.52 : 27,125.92 = 6,402.94 : x
  2. Step 2: Convert to fraction form
    18,081.52/27,125.92 = 6,402.94/x
  3. Step 3: Cross multiply
    18,081.52x = 27,125.92 × 6,402.94
  4. Step 4: Simplify right side
    18,081.52x = 173,685,638.20
  5. Step 5: Solve for x
    x = 173,685,638.20/18,081.52
  6. Step 6: Final answer
    x = 9,605.70

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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.