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Finding the Third Proportional to 4,423.78 and 9,208.69

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Solution

The third proportional to 4,423.78 and 9,208.69 is: 19,169.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,423.78 : 9,208.69 = 9,208.69 : x
  2. Step 2: Convert to fraction form
    4,423.78/9,208.69 = 9,208.69/x
  3. Step 3: Cross multiply
    4,423.78x = 9,208.69 × 9,208.69
  4. Step 4: Simplify right side
    4,423.78x = 84,799,925.47
  5. Step 5: Solve for x
    x = 84,799,925.47/4,423.78
  6. Step 6: Final answer
    x = 19,169.10

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.