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Finding the Third Proportional to 12,690 and 26,193

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Solution

The third proportional to 12,690 and 26,193 is: 54,064.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,690 : 26,193 = 26,193 : x
  2. Step 2: Convert to fraction form
    12,690/26,193 = 26,193/x
  3. Step 3: Cross multiply
    12,690x = 26,193 × 26,193
  4. Step 4: Simplify right side
    12,690x = 686,073,249
  5. Step 5: Solve for x
    x = 686,073,249/12,690
  6. Step 6: Final answer
    x = 54,064.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.