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Finding the Third Proportional to 13,120 and 14,344

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Solution

The third proportional to 13,120 and 14,344 is: 15,682.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120 : 14,344 = 14,344 : x
  2. Step 2: Convert to fraction form
    13,120/14,344 = 14,344/x
  3. Step 3: Cross multiply
    13,120x = 14,344 × 14,344
  4. Step 4: Simplify right side
    13,120x = 205,750,336
  5. Step 5: Solve for x
    x = 205,750,336/13,120
  6. Step 6: Final answer
    x = 15,682.19

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.