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Finding the Third Proportional to 6,381 and 13,416

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Solution

The third proportional to 6,381 and 13,416 is: 28,207.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381 : 13,416 = 13,416 : x
  2. Step 2: Convert to fraction form
    6,381/13,416 = 13,416/x
  3. Step 3: Cross multiply
    6,381x = 13,416 × 13,416
  4. Step 4: Simplify right side
    6,381x = 179,989,056
  5. Step 5: Solve for x
    x = 179,989,056/6,381
  6. Step 6: Final answer
    x = 28,207.03

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.