Home / 11,387.63-15,714.96-6,351.73

Finding the Fourth Proportional to 11,387.63, 15,714.96 and 6,351.73

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Solution

The fourth proportional to 11,387.63, 15,714.96 and 6,351.73 is: 8,765.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,387.63 : 15,714.96 = 6,351.73 : x
  2. Step 2: Convert to fraction form
    11,387.63/15,714.96 = 6,351.73/x
  3. Step 3: Cross multiply
    11,387.63x = 15,714.96 × 6,351.73
  4. Step 4: Simplify right side
    11,387.63x = 99,817,072.55
  5. Step 5: Solve for x
    x = 99,817,072.55/11,387.63
  6. Step 6: Final answer
    x = 8,765.39

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Half scale
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Double scale
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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.