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Finding the Third Proportional to 4,872 and 10,230

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Solution

The third proportional to 4,872 and 10,230 is: 21,480.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,872 : 10,230 = 10,230 : x
  2. Step 2: Convert to fraction form
    4,872/10,230 = 10,230/x
  3. Step 3: Cross multiply
    4,872x = 10,230 × 10,230
  4. Step 4: Simplify right side
    4,872x = 104,652,900
  5. Step 5: Solve for x
    x = 104,652,900/4,872
  6. Step 6: Final answer
    x = 21,480.48

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.