Home / 8,781.76-13,170.81-3,233.66

Finding the Fourth Proportional to 8,781.76, 13,170.81 and 3,233.66

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Solution

The fourth proportional to 8,781.76, 13,170.81 and 3,233.66 is: 4,849.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.76 : 13,170.81 = 3,233.66 : x
  2. Step 2: Convert to fraction form
    8,781.76/13,170.81 = 3,233.66/x
  3. Step 3: Cross multiply
    8,781.76x = 13,170.81 × 3,233.66
  4. Step 4: Simplify right side
    8,781.76x = 42,589,921.46
  5. Step 5: Solve for x
    x = 42,589,921.46/8,781.76
  6. Step 6: Final answer
    x = 4,849.82

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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.