Home / 8,372.82-12,550.30-3,981

Finding the Fourth Proportional to 8,372.82, 12,550.30 and 3,981

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Solution

The fourth proportional to 8,372.82, 12,550.30 and 3,981 is: 5,967.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,372.82 : 12,550.30 = 3,981 : x
  2. Step 2: Convert to fraction form
    8,372.82/12,550.30 = 3,981/x
  3. Step 3: Cross multiply
    8,372.82x = 12,550.30 × 3,981
  4. Step 4: Simplify right side
    8,372.82x = 49,962,744.30
  5. Step 5: Solve for x
    x = 49,962,744.30/8,372.82
  6. Step 6: Final answer
    x = 5,967.25

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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.