Home / 8,104.48-12,155.60-3,170.64

Finding the Fourth Proportional to 8,104.48, 12,155.60 and 3,170.64

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Solution

The fourth proportional to 8,104.48, 12,155.60 and 3,170.64 is: 4,755.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,104.48 : 12,155.60 = 3,170.64 : x
  2. Step 2: Convert to fraction form
    8,104.48/12,155.60 = 3,170.64/x
  3. Step 3: Cross multiply
    8,104.48x = 12,155.60 × 3,170.64
  4. Step 4: Simplify right side
    8,104.48x = 38,541,031.58
  5. Step 5: Solve for x
    x = 38,541,031.58/8,104.48
  6. Step 6: Final answer
    x = 4,755.52

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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.