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Finding the Third Proportional to 6,453.56 and 8,685.56

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Solution

The third proportional to 6,453.56 and 8,685.56 is: 11,689.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,453.56 : 8,685.56 = 8,685.56 : x
  2. Step 2: Convert to fraction form
    6,453.56/8,685.56 = 8,685.56/x
  3. Step 3: Cross multiply
    6,453.56x = 8,685.56 × 8,685.56
  4. Step 4: Simplify right side
    6,453.56x = 75,438,995.94
  5. Step 5: Solve for x
    x = 75,438,995.94/6,453.56
  6. Step 6: Final answer
    x = 11,689.51

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.