Home / 8,086.26-12,131.40-3,702.80

Finding the Fourth Proportional to 8,086.26, 12,131.40 and 3,702.80

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Solution

The fourth proportional to 8,086.26, 12,131.40 and 3,702.80 is: 5,555.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,086.26 : 12,131.40 = 3,702.80 : x
  2. Step 2: Convert to fraction form
    8,086.26/12,131.40 = 3,702.80/x
  3. Step 3: Cross multiply
    8,086.26x = 12,131.40 × 3,702.80
  4. Step 4: Simplify right side
    8,086.26x = 44,920,147.92
  5. Step 5: Solve for x
    x = 44,920,147.92/8,086.26
  6. Step 6: Final answer
    x = 5,555.12

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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.