Home / 8,781.22-13,171.11-2,625.22

Finding the Fourth Proportional to 8,781.22, 13,171.11 and 2,625.22

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Solution

The fourth proportional to 8,781.22, 13,171.11 and 2,625.22 is: 3,937.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.22 : 13,171.11 = 2,625.22 : x
  2. Step 2: Convert to fraction form
    8,781.22/13,171.11 = 2,625.22/x
  3. Step 3: Cross multiply
    8,781.22x = 13,171.11 × 2,625.22
  4. Step 4: Simplify right side
    8,781.22x = 34,577,061.39
  5. Step 5: Solve for x
    x = 34,577,061.39/8,781.22
  6. Step 6: Final answer
    x = 3,937.61

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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.