Home / 8,169.18-12,255.21-3,791.58

Finding the Fourth Proportional to 8,169.18, 12,255.21 and 3,791.58

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Solution

The fourth proportional to 8,169.18, 12,255.21 and 3,791.58 is: 5,688.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.18 : 12,255.21 = 3,791.58 : x
  2. Step 2: Convert to fraction form
    8,169.18/12,255.21 = 3,791.58/x
  3. Step 3: Cross multiply
    8,169.18x = 12,255.21 × 3,791.58
  4. Step 4: Simplify right side
    8,169.18x = 46,466,609.13
  5. Step 5: Solve for x
    x = 46,466,609.13/8,169.18
  6. Step 6: Final answer
    x = 5,688.04

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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.