Home / 8,170.47-12,255.84-3,951.27

Finding the Fourth Proportional to 8,170.47, 12,255.84 and 3,951.27

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Solution

The fourth proportional to 8,170.47, 12,255.84 and 3,951.27 is: 5,926.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.47 : 12,255.84 = 3,951.27 : x
  2. Step 2: Convert to fraction form
    8,170.47/12,255.84 = 3,951.27/x
  3. Step 3: Cross multiply
    8,170.47x = 12,255.84 × 3,951.27
  4. Step 4: Simplify right side
    8,170.47x = 48,426,132.92
  5. Step 5: Solve for x
    x = 48,426,132.92/8,170.47
  6. Step 6: Final answer
    x = 5,926.97

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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.