Home / 13,734.91-20,600.16-3,874.88

Finding the Fourth Proportional to 13,734.91, 20,600.16 and 3,874.88

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Solution

The fourth proportional to 13,734.91, 20,600.16 and 3,874.88 is: 5,811.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,734.91 : 20,600.16 = 3,874.88 : x
  2. Step 2: Convert to fraction form
    13,734.91/20,600.16 = 3,874.88/x
  3. Step 3: Cross multiply
    13,734.91x = 20,600.16 × 3,874.88
  4. Step 4: Simplify right side
    13,734.91x = 79,823,025.61
  5. Step 5: Solve for x
    x = 79,823,025.61/13,734.91
  6. Step 6: Final answer
    x = 5,811.69

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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.