Home / 8,539.85-12,811.32-3,862.06

Finding the Fourth Proportional to 8,539.85, 12,811.32 and 3,862.06

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Solution

The fourth proportional to 8,539.85, 12,811.32 and 3,862.06 is: 5,793.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,539.85 : 12,811.32 = 3,862.06 : x
  2. Step 2: Convert to fraction form
    8,539.85/12,811.32 = 3,862.06/x
  3. Step 3: Cross multiply
    8,539.85x = 12,811.32 × 3,862.06
  4. Step 4: Simplify right side
    8,539.85x = 49,478,003.15
  5. Step 5: Solve for x
    x = 49,478,003.15/8,539.85
  6. Step 6: Final answer
    x = 5,793.78

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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.