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Finding the Fourth Proportional to 8,493.11, 12,741.48 and 3,559.90

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Solution

The fourth proportional to 8,493.11, 12,741.48 and 3,559.90 is: 5,340.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,493.11 : 12,741.48 = 3,559.90 : x
  2. Step 2: Convert to fraction form
    8,493.11/12,741.48 = 3,559.90/x
  3. Step 3: Cross multiply
    8,493.11x = 12,741.48 × 3,559.90
  4. Step 4: Simplify right side
    8,493.11x = 45,358,394.65
  5. Step 5: Solve for x
    x = 45,358,394.65/8,493.11
  6. Step 6: Final answer
    x = 5,340.61

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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.