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Finding the Third Proportional to 12,681 and 14,679

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Solution

The third proportional to 12,681 and 14,679 is: 16,991.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,681 : 14,679 = 14,679 : x
  2. Step 2: Convert to fraction form
    12,681/14,679 = 14,679/x
  3. Step 3: Cross multiply
    12,681x = 14,679 × 14,679
  4. Step 4: Simplify right side
    12,681x = 215,473,041
  5. Step 5: Solve for x
    x = 215,473,041/12,681
  6. Step 6: Final answer
    x = 16,991.80

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Why These Related Problems?

These problems maintain the same ratio (1.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.