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Finding the Third Proportional to 11,879 and 16,712

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Solution

The third proportional to 11,879 and 16,712 is: 23,511.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,879 : 16,712 = 16,712 : x
  2. Step 2: Convert to fraction form
    11,879/16,712 = 16,712/x
  3. Step 3: Cross multiply
    11,879x = 16,712 × 16,712
  4. Step 4: Simplify right side
    11,879x = 279,290,944
  5. Step 5: Solve for x
    x = 279,290,944/11,879
  6. Step 6: Final answer
    x = 23,511.32

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.