Home / 8,540.60-12,816.04-3,609.86

Finding the Fourth Proportional to 8,540.60, 12,816.04 and 3,609.86

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Solution

The fourth proportional to 8,540.60, 12,816.04 and 3,609.86 is: 5,416.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.60 : 12,816.04 = 3,609.86 : x
  2. Step 2: Convert to fraction form
    8,540.60/12,816.04 = 3,609.86/x
  3. Step 3: Cross multiply
    8,540.60x = 12,816.04 × 3,609.86
  4. Step 4: Simplify right side
    8,540.60x = 46,264,110.15
  5. Step 5: Solve for x
    x = 46,264,110.15/8,540.60
  6. Step 6: Final answer
    x = 5,416.96

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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.