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Finding the Third Proportional to 8,661.94 and 9,208.69

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Solution

The third proportional to 8,661.94 and 9,208.69 is: 9,789.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,661.94 : 9,208.69 = 9,208.69 : x
  2. Step 2: Convert to fraction form
    8,661.94/9,208.69 = 9,208.69/x
  3. Step 3: Cross multiply
    8,661.94x = 9,208.69 × 9,208.69
  4. Step 4: Simplify right side
    8,661.94x = 84,799,925.47
  5. Step 5: Solve for x
    x = 84,799,925.47/8,661.94
  6. Step 6: Final answer
    x = 9,789.95

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Why These Related Problems?

These problems maintain the same ratio (1.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.