Home / 8,724.42-13,086.36-3,177.90

Finding the Fourth Proportional to 8,724.42, 13,086.36 and 3,177.90

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Solution

The fourth proportional to 8,724.42, 13,086.36 and 3,177.90 is: 4,766.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.42 : 13,086.36 = 3,177.90 : x
  2. Step 2: Convert to fraction form
    8,724.42/13,086.36 = 3,177.90/x
  3. Step 3: Cross multiply
    8,724.42x = 13,086.36 × 3,177.90
  4. Step 4: Simplify right side
    8,724.42x = 41,587,143.44
  5. Step 5: Solve for x
    x = 41,587,143.44/8,724.42
  6. Step 6: Final answer
    x = 4,766.75

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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.