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Finding the Fourth Proportional to 8,255.59, 12,383.39 and 3,571.77

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Solution

The fourth proportional to 8,255.59, 12,383.39 and 3,571.77 is: 5,357.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.59 : 12,383.39 = 3,571.77 : x
  2. Step 2: Convert to fraction form
    8,255.59/12,383.39 = 3,571.77/x
  3. Step 3: Cross multiply
    8,255.59x = 12,383.39 × 3,571.77
  4. Step 4: Simplify right side
    8,255.59x = 44,230,620.90
  5. Step 5: Solve for x
    x = 44,230,620.90/8,255.59
  6. Step 6: Final answer
    x = 5,357.66

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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.