Home / 8,375.40-12,556.61-3,755.16

Finding the Fourth Proportional to 8,375.40, 12,556.61 and 3,755.16

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Solution

The fourth proportional to 8,375.40, 12,556.61 and 3,755.16 is: 5,629.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,375.40 : 12,556.61 = 3,755.16 : x
  2. Step 2: Convert to fraction form
    8,375.40/12,556.61 = 3,755.16/x
  3. Step 3: Cross multiply
    8,375.40x = 12,556.61 × 3,755.16
  4. Step 4: Simplify right side
    8,375.40x = 47,152,079.61
  5. Step 5: Solve for x
    x = 47,152,079.61/8,375.40
  6. Step 6: Final answer
    x = 5,629.83

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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.