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Finding the Third Proportional to 5,540.63 and 8,291.81

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Solution

The third proportional to 5,540.63 and 8,291.81 is: 12,409.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.63 : 8,291.81 = 8,291.81 : x
  2. Step 2: Convert to fraction form
    5,540.63/8,291.81 = 8,291.81/x
  3. Step 3: Cross multiply
    5,540.63x = 8,291.81 × 8,291.81
  4. Step 4: Simplify right side
    5,540.63x = 68,754,154.54
  5. Step 5: Solve for x
    x = 68,754,154.54/5,540.63
  6. Step 6: Final answer
    x = 12,409.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.