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Finding the Third Proportional to 5,647.78 and 11,758.78

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Solution

The third proportional to 5,647.78 and 11,758.78 is: 24,481.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,647.78 : 11,758.78 = 11,758.78 : x
  2. Step 2: Convert to fraction form
    5,647.78/11,758.78 = 11,758.78/x
  3. Step 3: Cross multiply
    5,647.78x = 11,758.78 × 11,758.78
  4. Step 4: Simplify right side
    5,647.78x = 138,268,936.49
  5. Step 5: Solve for x
    x = 138,268,936.49/5,647.78
  6. Step 6: Final answer
    x = 24,481.99

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.