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Finding the Third Proportional to 11,156 and 17,351

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Solution

The third proportional to 11,156 and 17,351 is: 26,986.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,156 : 17,351 = 17,351 : x
  2. Step 2: Convert to fraction form
    11,156/17,351 = 17,351/x
  3. Step 3: Cross multiply
    11,156x = 17,351 × 17,351
  4. Step 4: Simplify right side
    11,156x = 301,057,201
  5. Step 5: Solve for x
    x = 301,057,201/11,156
  6. Step 6: Final answer
    x = 26,986.12

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.