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Finding the Third Proportional to 4,815 and 10,511

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Solution

The third proportional to 4,815 and 10,511 is: 22,945.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815 : 10,511 = 10,511 : x
  2. Step 2: Convert to fraction form
    4,815/10,511 = 10,511/x
  3. Step 3: Cross multiply
    4,815x = 10,511 × 10,511
  4. Step 4: Simplify right side
    4,815x = 110,481,121
  5. Step 5: Solve for x
    x = 110,481,121/4,815
  6. Step 6: Final answer
    x = 22,945.20

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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.