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Finding the Third Proportional to 13,078.13 and 18,857.25

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Solution

The third proportional to 13,078.13 and 18,857.25 is: 27,190.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.13 : 18,857.25 = 18,857.25 : x
  2. Step 2: Convert to fraction form
    13,078.13/18,857.25 = 18,857.25/x
  3. Step 3: Cross multiply
    13,078.13x = 18,857.25 × 18,857.25
  4. Step 4: Simplify right side
    13,078.13x = 355,595,877.56
  5. Step 5: Solve for x
    x = 355,595,877.56/13,078.13
  6. Step 6: Final answer
    x = 27,190.13

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.