Home / 8,132.10-12,169.35-5,540.10

Finding the Fourth Proportional to 8,132.10, 12,169.35 and 5,540.10

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Solution

The fourth proportional to 8,132.10, 12,169.35 and 5,540.10 is: 8,290.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,132.10 : 12,169.35 = 5,540.10 : x
  2. Step 2: Convert to fraction form
    8,132.10/12,169.35 = 5,540.10/x
  3. Step 3: Cross multiply
    8,132.10x = 12,169.35 × 5,540.10
  4. Step 4: Simplify right side
    8,132.10x = 67,419,415.94
  5. Step 5: Solve for x
    x = 67,419,415.94/8,132.10
  6. Step 6: Final answer
    x = 8,290.53

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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.