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Finding the Third Proportional to 10,520 and 15,626

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Solution

The third proportional to 10,520 and 15,626 is: 23,210.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,520 : 15,626 = 15,626 : x
  2. Step 2: Convert to fraction form
    10,520/15,626 = 15,626/x
  3. Step 3: Cross multiply
    10,520x = 15,626 × 15,626
  4. Step 4: Simplify right side
    10,520x = 244,171,876
  5. Step 5: Solve for x
    x = 244,171,876/10,520
  6. Step 6: Final answer
    x = 23,210.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.