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Finding the Third Proportional to 6,408 and 13,625

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Solution

The third proportional to 6,408 and 13,625 is: 28,970.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,408 : 13,625 = 13,625 : x
  2. Step 2: Convert to fraction form
    6,408/13,625 = 13,625/x
  3. Step 3: Cross multiply
    6,408x = 13,625 × 13,625
  4. Step 4: Simplify right side
    6,408x = 185,640,625
  5. Step 5: Solve for x
    x = 185,640,625/6,408
  6. Step 6: Final answer
    x = 28,970.13

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.