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Finding the Third Proportional to 7,568 and 11,811.88

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Solution

The third proportional to 7,568 and 11,811.88 is: 18,435.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,568 : 11,811.88 = 11,811.88 : x
  2. Step 2: Convert to fraction form
    7,568/11,811.88 = 11,811.88/x
  3. Step 3: Cross multiply
    7,568x = 11,811.88 × 11,811.88
  4. Step 4: Simplify right side
    7,568x = 139,520,391.02
  5. Step 5: Solve for x
    x = 139,520,391.02/7,568
  6. Step 6: Final answer
    x = 18,435.57

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.