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Finding the Third Proportional to 5,011.50 and 9,639

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Solution

The third proportional to 5,011.50 and 9,639 is: 18,539.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,011.50 : 9,639 = 9,639 : x
  2. Step 2: Convert to fraction form
    5,011.50/9,639 = 9,639/x
  3. Step 3: Cross multiply
    5,011.50x = 9,639 × 9,639
  4. Step 4: Simplify right side
    5,011.50x = 92,910,321
  5. Step 5: Solve for x
    x = 92,910,321/5,011.50
  6. Step 6: Final answer
    x = 18,539.42

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Why These Related Problems?

These problems maintain the same ratio (1.92) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.