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Finding the Third Proportional to 8,815 and 19,207

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Solution

The third proportional to 8,815 and 19,207 is: 41,850.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815 : 19,207 = 19,207 : x
  2. Step 2: Convert to fraction form
    8,815/19,207 = 19,207/x
  3. Step 3: Cross multiply
    8,815x = 19,207 × 19,207
  4. Step 4: Simplify right side
    8,815x = 368,908,849
  5. Step 5: Solve for x
    x = 368,908,849/8,815
  6. Step 6: Final answer
    x = 41,850.12

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.