Home / 8,540.88-12,812.68-3,610.56

Finding the Fourth Proportional to 8,540.88, 12,812.68 and 3,610.56

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Solution

The fourth proportional to 8,540.88, 12,812.68 and 3,610.56 is: 5,416.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.88 : 12,812.68 = 3,610.56 : x
  2. Step 2: Convert to fraction form
    8,540.88/12,812.68 = 3,610.56/x
  3. Step 3: Cross multiply
    8,540.88x = 12,812.68 × 3,610.56
  4. Step 4: Simplify right side
    8,540.88x = 46,260,949.90
  5. Step 5: Solve for x
    x = 46,260,949.90/8,540.88
  6. Step 6: Final answer
    x = 5,416.41

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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.