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Finding the Third Proportional to 12,891 and 26,898

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Solution

The third proportional to 12,891 and 26,898 is: 56,124.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,891 : 26,898 = 26,898 : x
  2. Step 2: Convert to fraction form
    12,891/26,898 = 26,898/x
  3. Step 3: Cross multiply
    12,891x = 26,898 × 26,898
  4. Step 4: Simplify right side
    12,891x = 723,502,404
  5. Step 5: Solve for x
    x = 723,502,404/12,891
  6. Step 6: Final answer
    x = 56,124.61

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.