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Finding the Third Proportional to 4,150.50 and 8,685.75

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Solution

The third proportional to 4,150.50 and 8,685.75 is: 18,176.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,150.50 : 8,685.75 = 8,685.75 : x
  2. Step 2: Convert to fraction form
    4,150.50/8,685.75 = 8,685.75/x
  3. Step 3: Cross multiply
    4,150.50x = 8,685.75 × 8,685.75
  4. Step 4: Simplify right side
    4,150.50x = 75,442,253.06
  5. Step 5: Solve for x
    x = 75,442,253.06/4,150.50
  6. Step 6: Final answer
    x = 18,176.67

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.