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Finding the Third Proportional to 3,939.50 and 8,594

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Solution

The third proportional to 3,939.50 and 8,594 is: 18,747.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.50 : 8,594 = 8,594 : x
  2. Step 2: Convert to fraction form
    3,939.50/8,594 = 8,594/x
  3. Step 3: Cross multiply
    3,939.50x = 8,594 × 8,594
  4. Step 4: Simplify right side
    3,939.50x = 73,856,836
  5. Step 5: Solve for x
    x = 73,856,836/3,939.50
  6. Step 6: Final answer
    x = 18,747.77

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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.