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Finding the Fourth Proportional to 8,493.42, 12,739.88 and 2,253.44

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Solution

The fourth proportional to 8,493.42, 12,739.88 and 2,253.44 is: 3,380.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,493.42 : 12,739.88 = 2,253.44 : x
  2. Step 2: Convert to fraction form
    8,493.42/12,739.88 = 2,253.44/x
  3. Step 3: Cross multiply
    8,493.42x = 12,739.88 × 2,253.44
  4. Step 4: Simplify right side
    8,493.42x = 28,708,555.19
  5. Step 5: Solve for x
    x = 28,708,555.19/8,493.42
  6. Step 6: Final answer
    x = 3,380.09

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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.