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Finding the Third Proportional to 12,679 and 19,565

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Solution

The third proportional to 12,679 and 19,565 is: 30,190.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,679 : 19,565 = 19,565 : x
  2. Step 2: Convert to fraction form
    12,679/19,565 = 19,565/x
  3. Step 3: Cross multiply
    12,679x = 19,565 × 19,565
  4. Step 4: Simplify right side
    12,679x = 382,789,225
  5. Step 5: Solve for x
    x = 382,789,225/12,679
  6. Step 6: Final answer
    x = 30,190.81

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.