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Finding the Third Proportional to 4,609.69 and 9,903.09

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Solution

The third proportional to 4,609.69 and 9,903.09 is: 21,275.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,609.69 : 9,903.09 = 9,903.09 : x
  2. Step 2: Convert to fraction form
    4,609.69/9,903.09 = 9,903.09/x
  3. Step 3: Cross multiply
    4,609.69x = 9,903.09 × 9,903.09
  4. Step 4: Simplify right side
    4,609.69x = 98,071,265.82
  5. Step 5: Solve for x
    x = 98,071,265.82/4,609.69
  6. Step 6: Final answer
    x = 21,275.04

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.