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Finding the Third Proportional to 12,860 and 14,786

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Solution

The third proportional to 12,860 and 14,786 is: 17,000.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,860 : 14,786 = 14,786 : x
  2. Step 2: Convert to fraction form
    12,860/14,786 = 14,786/x
  3. Step 3: Cross multiply
    12,860x = 14,786 × 14,786
  4. Step 4: Simplify right side
    12,860x = 218,625,796
  5. Step 5: Solve for x
    x = 218,625,796/12,860
  6. Step 6: Final answer
    x = 17,000.45

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.