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Finding the Fourth Proportional to 26,586.92, 39,874.88 and 12,540.92

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Solution

The fourth proportional to 26,586.92, 39,874.88 and 12,540.92 is: 18,808.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,586.92 : 39,874.88 = 12,540.92 : x
  2. Step 2: Convert to fraction form
    26,586.92/39,874.88 = 12,540.92/x
  3. Step 3: Cross multiply
    26,586.92x = 39,874.88 × 12,540.92
  4. Step 4: Simplify right side
    26,586.92x = 500,067,512.07
  5. Step 5: Solve for x
    x = 500,067,512.07/26,586.92
  6. Step 6: Final answer
    x = 18,808.78

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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.