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Finding the Fourth Proportional to 8,524.80, 12,790.40 and 3,843.41

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Solution

The fourth proportional to 8,524.80, 12,790.40 and 3,843.41 is: 5,766.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,524.80 : 12,790.40 = 3,843.41 : x
  2. Step 2: Convert to fraction form
    8,524.80/12,790.40 = 3,843.41/x
  3. Step 3: Cross multiply
    8,524.80x = 12,790.40 × 3,843.41
  4. Step 4: Simplify right side
    8,524.80x = 49,158,668.09
  5. Step 5: Solve for x
    x = 49,158,668.09/8,524.80
  6. Step 6: Final answer
    x = 5,766.55

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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.