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Finding the Third Proportional to 10,912 and 11,848

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Solution

The third proportional to 10,912 and 11,848 is: 12,864.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912 : 11,848 = 11,848 : x
  2. Step 2: Convert to fraction form
    10,912/11,848 = 11,848/x
  3. Step 3: Cross multiply
    10,912x = 11,848 × 11,848
  4. Step 4: Simplify right side
    10,912x = 140,375,104
  5. Step 5: Solve for x
    x = 140,375,104/10,912
  6. Step 6: Final answer
    x = 12,864.29

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.