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Finding the Third Proportional to 7,211 and 9,214

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Solution

The third proportional to 7,211 and 9,214 is: 11,773.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211 : 9,214 = 9,214 : x
  2. Step 2: Convert to fraction form
    7,211/9,214 = 9,214/x
  3. Step 3: Cross multiply
    7,211x = 9,214 × 9,214
  4. Step 4: Simplify right side
    7,211x = 84,897,796
  5. Step 5: Solve for x
    x = 84,897,796/7,211
  6. Step 6: Final answer
    x = 11,773.37

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.