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Finding the Third Proportional to 6,291 and 13,851

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Solution

The third proportional to 6,291 and 13,851 is: 30,495.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291 : 13,851 = 13,851 : x
  2. Step 2: Convert to fraction form
    6,291/13,851 = 13,851/x
  3. Step 3: Cross multiply
    6,291x = 13,851 × 13,851
  4. Step 4: Simplify right side
    6,291x = 191,850,201
  5. Step 5: Solve for x
    x = 191,850,201/6,291
  6. Step 6: Final answer
    x = 30,495.98

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.