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Finding the Fourth Proportional to 12,841.44, 17,714.62 and 8,372.68

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Solution

The fourth proportional to 12,841.44, 17,714.62 and 8,372.68 is: 11,550.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,841.44 : 17,714.62 = 8,372.68 : x
  2. Step 2: Convert to fraction form
    12,841.44/17,714.62 = 8,372.68/x
  3. Step 3: Cross multiply
    12,841.44x = 17,714.62 × 8,372.68
  4. Step 4: Simplify right side
    12,841.44x = 148,318,844.58
  5. Step 5: Solve for x
    x = 148,318,844.58/12,841.44
  6. Step 6: Final answer
    x = 11,550.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.