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Finding the Third Proportional to 7,890.75 and 16,976.25

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Solution

The third proportional to 7,890.75 and 16,976.25 is: 36,522.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.75 : 16,976.25 = 16,976.25 : x
  2. Step 2: Convert to fraction form
    7,890.75/16,976.25 = 16,976.25/x
  3. Step 3: Cross multiply
    7,890.75x = 16,976.25 × 16,976.25
  4. Step 4: Simplify right side
    7,890.75x = 288,193,064.06
  5. Step 5: Solve for x
    x = 288,193,064.06/7,890.75
  6. Step 6: Final answer
    x = 36,522.90

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.