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Finding the Third Proportional to 8,929 and 13,211

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Solution

The third proportional to 8,929 and 13,211 is: 19,546.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929 : 13,211 = 13,211 : x
  2. Step 2: Convert to fraction form
    8,929/13,211 = 13,211/x
  3. Step 3: Cross multiply
    8,929x = 13,211 × 13,211
  4. Step 4: Simplify right side
    8,929x = 174,530,521
  5. Step 5: Solve for x
    x = 174,530,521/8,929
  6. Step 6: Final answer
    x = 19,546.48

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.