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Finding the Third Proportional to 4,930.50 and 9,645

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Solution

The third proportional to 4,930.50 and 9,645 is: 18,867.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,930.50 : 9,645 = 9,645 : x
  2. Step 2: Convert to fraction form
    4,930.50/9,645 = 9,645/x
  3. Step 3: Cross multiply
    4,930.50x = 9,645 × 9,645
  4. Step 4: Simplify right side
    4,930.50x = 93,026,025
  5. Step 5: Solve for x
    x = 93,026,025/4,930.50
  6. Step 6: Final answer
    x = 18,867.46

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Why These Related Problems?

These problems maintain the same ratio (1.96) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.