Home / 8,132.90-12,180.15-5,521.70

Finding the Fourth Proportional to 8,132.90, 12,180.15 and 5,521.70

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Solution

The fourth proportional to 8,132.90, 12,180.15 and 5,521.70 is: 8,269.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,132.90 : 12,180.15 = 5,521.70 : x
  2. Step 2: Convert to fraction form
    8,132.90/12,180.15 = 5,521.70/x
  3. Step 3: Cross multiply
    8,132.90x = 12,180.15 × 5,521.70
  4. Step 4: Simplify right side
    8,132.90x = 67,255,134.26
  5. Step 5: Solve for x
    x = 67,255,134.26/8,132.90
  6. Step 6: Final answer
    x = 8,269.51

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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.