Home / 8,255.27-12,365.39-6,491.90

Finding the Fourth Proportional to 8,255.27, 12,365.39 and 6,491.90

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Solution

The fourth proportional to 8,255.27, 12,365.39 and 6,491.90 is: 9,724.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.27 : 12,365.39 = 6,491.90 : x
  2. Step 2: Convert to fraction form
    8,255.27/12,365.39 = 6,491.90/x
  3. Step 3: Cross multiply
    8,255.27x = 12,365.39 × 6,491.90
  4. Step 4: Simplify right side
    8,255.27x = 80,274,781.05
  5. Step 5: Solve for x
    x = 80,274,781.05/8,255.27
  6. Step 6: Final answer
    x = 9,724.07

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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.