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Finding the Third Proportional to 9,945 and 15,829.50

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Solution

The third proportional to 9,945 and 15,829.50 is: 25,195.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,945 : 15,829.50 = 15,829.50 : x
  2. Step 2: Convert to fraction form
    9,945/15,829.50 = 15,829.50/x
  3. Step 3: Cross multiply
    9,945x = 15,829.50 × 15,829.50
  4. Step 4: Simplify right side
    9,945x = 250,573,070.25
  5. Step 5: Solve for x
    x = 250,573,070.25/9,945
  6. Step 6: Final answer
    x = 25,195.88

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.