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Finding the Third Proportional to 12,855 and 26,736

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Solution

The third proportional to 12,855 and 26,736 is: 55,605.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,855 : 26,736 = 26,736 : x
  2. Step 2: Convert to fraction form
    12,855/26,736 = 26,736/x
  3. Step 3: Cross multiply
    12,855x = 26,736 × 26,736
  4. Step 4: Simplify right side
    12,855x = 714,813,696
  5. Step 5: Solve for x
    x = 714,813,696/12,855
  6. Step 6: Final answer
    x = 55,605.89

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.