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Finding the Third Proportional to 6,885 and 8,113.50

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Solution

The third proportional to 6,885 and 8,113.50 is: 9,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,885 : 8,113.50 = 8,113.50 : x
  2. Step 2: Convert to fraction form
    6,885/8,113.50 = 8,113.50/x
  3. Step 3: Cross multiply
    6,885x = 8,113.50 × 8,113.50
  4. Step 4: Simplify right side
    6,885x = 65,828,882.25
  5. Step 5: Solve for x
    x = 65,828,882.25/6,885
  6. Step 6: Final answer
    x = 9,561.20

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.