Home / 8,778.85-13,175.66-3,517.56

Finding the Fourth Proportional to 8,778.85, 13,175.66 and 3,517.56

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Solution

The fourth proportional to 8,778.85, 13,175.66 and 3,517.56 is: 5,279.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.85 : 13,175.66 = 3,517.56 : x
  2. Step 2: Convert to fraction form
    8,778.85/13,175.66 = 3,517.56/x
  3. Step 3: Cross multiply
    8,778.85x = 13,175.66 × 3,517.56
  4. Step 4: Simplify right side
    8,778.85x = 46,346,183.38
  5. Step 5: Solve for x
    x = 46,346,183.38/8,778.85
  6. Step 6: Final answer
    x = 5,279.30

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1.5x scale

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.