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Finding the Third Proportional to 3,933.56 and 8,555.63

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Solution

The third proportional to 3,933.56 and 8,555.63 is: 18,608.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,933.56 : 8,555.63 = 8,555.63 : x
  2. Step 2: Convert to fraction form
    3,933.56/8,555.63 = 8,555.63/x
  3. Step 3: Cross multiply
    3,933.56x = 8,555.63 × 8,555.63
  4. Step 4: Simplify right side
    3,933.56x = 73,198,719.14
  5. Step 5: Solve for x
    x = 73,198,719.14/3,933.56
  6. Step 6: Final answer
    x = 18,608.76

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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.