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Finding the Third Proportional to 4,422.66 and 9,665.58

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Solution

The third proportional to 4,422.66 and 9,665.58 is: 21,123.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,422.66 : 9,665.58 = 9,665.58 : x
  2. Step 2: Convert to fraction form
    4,422.66/9,665.58 = 9,665.58/x
  3. Step 3: Cross multiply
    4,422.66x = 9,665.58 × 9,665.58
  4. Step 4: Simplify right side
    4,422.66x = 93,423,400.49
  5. Step 5: Solve for x
    x = 93,423,400.49/4,422.66
  6. Step 6: Final answer
    x = 21,123.82

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.