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Finding the Third Proportional to 8,512 and 9,211

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Solution

The third proportional to 8,512 and 9,211 is: 9,967.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512 : 9,211 = 9,211 : x
  2. Step 2: Convert to fraction form
    8,512/9,211 = 9,211/x
  3. Step 3: Cross multiply
    8,512x = 9,211 × 9,211
  4. Step 4: Simplify right side
    8,512x = 84,842,521
  5. Step 5: Solve for x
    x = 84,842,521/8,512
  6. Step 6: Final answer
    x = 9,967.40

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.