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Finding the Third Proportional to 6,786 and 10,836

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Solution

The third proportional to 6,786 and 10,836 is: 17,303.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,786 : 10,836 = 10,836 : x
  2. Step 2: Convert to fraction form
    6,786/10,836 = 10,836/x
  3. Step 3: Cross multiply
    6,786x = 10,836 × 10,836
  4. Step 4: Simplify right side
    6,786x = 117,418,896
  5. Step 5: Solve for x
    x = 117,418,896/6,786
  6. Step 6: Final answer
    x = 17,303.11

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.