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Finding the Third Proportional to 11,181 and 15,671

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Solution

The third proportional to 11,181 and 15,671 is: 21,964.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181 : 15,671 = 15,671 : x
  2. Step 2: Convert to fraction form
    11,181/15,671 = 15,671/x
  3. Step 3: Cross multiply
    11,181x = 15,671 × 15,671
  4. Step 4: Simplify right side
    11,181x = 245,580,241
  5. Step 5: Solve for x
    x = 245,580,241/11,181
  6. Step 6: Final answer
    x = 21,964.07

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.