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Finding the Third Proportional to 12,687.75 and 18,032.63

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Solution

The third proportional to 12,687.75 and 18,032.63 is: 25,629.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687.75 : 18,032.63 = 18,032.63 : x
  2. Step 2: Convert to fraction form
    12,687.75/18,032.63 = 18,032.63/x
  3. Step 3: Cross multiply
    12,687.75x = 18,032.63 × 18,032.63
  4. Step 4: Simplify right side
    12,687.75x = 325,175,564.39
  5. Step 5: Solve for x
    x = 325,175,564.39/12,687.75
  6. Step 6: Final answer
    x = 25,629.10

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.