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Finding the Third Proportional to 5,487 and 11,999

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Solution

The third proportional to 5,487 and 11,999 is: 26,239.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487 : 11,999 = 11,999 : x
  2. Step 2: Convert to fraction form
    5,487/11,999 = 11,999/x
  3. Step 3: Cross multiply
    5,487x = 11,999 × 11,999
  4. Step 4: Simplify right side
    5,487x = 143,976,001
  5. Step 5: Solve for x
    x = 143,976,001/5,487
  6. Step 6: Final answer
    x = 26,239.48

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.