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Finding the Third Proportional to 6,786 and 13,392

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Solution

The third proportional to 6,786 and 13,392 is: 26,428.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,786 : 13,392 = 13,392 : x
  2. Step 2: Convert to fraction form
    6,786/13,392 = 13,392/x
  3. Step 3: Cross multiply
    6,786x = 13,392 × 13,392
  4. Step 4: Simplify right side
    6,786x = 179,345,664
  5. Step 5: Solve for x
    x = 179,345,664/6,786
  6. Step 6: Final answer
    x = 26,428.77

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.