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Finding the Third Proportional to 15,437.25 and 17,138.25

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Solution

The third proportional to 15,437.25 and 17,138.25 is: 19,026.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,437.25 : 17,138.25 = 17,138.25 : x
  2. Step 2: Convert to fraction form
    15,437.25/17,138.25 = 17,138.25/x
  3. Step 3: Cross multiply
    15,437.25x = 17,138.25 × 17,138.25
  4. Step 4: Simplify right side
    15,437.25x = 293,719,613.06
  5. Step 5: Solve for x
    x = 293,719,613.06/15,437.25
  6. Step 6: Final answer
    x = 19,026.68

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.