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Finding the Third Proportional to 5,181 and 10,587

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Solution

The third proportional to 5,181 and 10,587 is: 21,633.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181 : 10,587 = 10,587 : x
  2. Step 2: Convert to fraction form
    5,181/10,587 = 10,587/x
  3. Step 3: Cross multiply
    5,181x = 10,587 × 10,587
  4. Step 4: Simplify right side
    5,181x = 112,084,569
  5. Step 5: Solve for x
    x = 112,084,569/5,181
  6. Step 6: Final answer
    x = 21,633.77

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.