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Finding the Third Proportional to 10,509.75 and 15,076.13

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Solution

The third proportional to 10,509.75 and 15,076.13 is: 21,626.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,509.75 : 15,076.13 = 15,076.13 : x
  2. Step 2: Convert to fraction form
    10,509.75/15,076.13 = 15,076.13/x
  3. Step 3: Cross multiply
    10,509.75x = 15,076.13 × 15,076.13
  4. Step 4: Simplify right side
    10,509.75x = 227,289,545.02
  5. Step 5: Solve for x
    x = 227,289,545.02/10,509.75
  6. Step 6: Final answer
    x = 21,626.54

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.