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Finding the Fourth Proportional to 8,340.44, 12,524.96 and 7,405.49

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Solution

The fourth proportional to 8,340.44, 12,524.96 and 7,405.49 is: 11,120.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.44 : 12,524.96 = 7,405.49 : x
  2. Step 2: Convert to fraction form
    8,340.44/12,524.96 = 7,405.49/x
  3. Step 3: Cross multiply
    8,340.44x = 12,524.96 × 7,405.49
  4. Step 4: Simplify right side
    8,340.44x = 92,753,466.03
  5. Step 5: Solve for x
    x = 92,753,466.03/8,340.44
  6. Step 6: Final answer
    x = 11,120.94

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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.