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Finding the Third Proportional to 8,616 and 12,650.25

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Solution

The third proportional to 8,616 and 12,650.25 is: 18,573.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616 : 12,650.25 = 12,650.25 : x
  2. Step 2: Convert to fraction form
    8,616/12,650.25 = 12,650.25/x
  3. Step 3: Cross multiply
    8,616x = 12,650.25 × 12,650.25
  4. Step 4: Simplify right side
    8,616x = 160,028,825.06
  5. Step 5: Solve for x
    x = 160,028,825.06/8,616
  6. Step 6: Final answer
    x = 18,573.45

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.