Home / 8,540.90-12,812.15-3,610.46

Finding the Fourth Proportional to 8,540.90, 12,812.15 and 3,610.46

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Solution

The fourth proportional to 8,540.90, 12,812.15 and 3,610.46 is: 5,416.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.90 : 12,812.15 = 3,610.46 : x
  2. Step 2: Convert to fraction form
    8,540.90/12,812.15 = 3,610.46/x
  3. Step 3: Cross multiply
    8,540.90x = 12,812.15 × 3,610.46
  4. Step 4: Simplify right side
    8,540.90x = 46,257,755.09
  5. Step 5: Solve for x
    x = 46,257,755.09/8,540.90
  6. Step 6: Final answer
    x = 5,416.03

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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.