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Finding the Third Proportional to 11,198 and 17,221

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Solution

The third proportional to 11,198 and 17,221 is: 26,483.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,198 : 17,221 = 17,221 : x
  2. Step 2: Convert to fraction form
    11,198/17,221 = 17,221/x
  3. Step 3: Cross multiply
    11,198x = 17,221 × 17,221
  4. Step 4: Simplify right side
    11,198x = 296,562,841
  5. Step 5: Solve for x
    x = 296,562,841/11,198
  6. Step 6: Final answer
    x = 26,483.55

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.