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Finding the Third Proportional to 5,631 and 11,621

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Solution

The third proportional to 5,631 and 11,621 is: 23,982.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631 : 11,621 = 11,621 : x
  2. Step 2: Convert to fraction form
    5,631/11,621 = 11,621/x
  3. Step 3: Cross multiply
    5,631x = 11,621 × 11,621
  4. Step 4: Simplify right side
    5,631x = 135,047,641
  5. Step 5: Solve for x
    x = 135,047,641/5,631
  6. Step 6: Final answer
    x = 23,982.89

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.