Home / 7,716.97-11,575.38-2,171.86

Finding the Fourth Proportional to 7,716.97, 11,575.38 and 2,171.86

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Solution

The fourth proportional to 7,716.97, 11,575.38 and 2,171.86 is: 3,257.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.97 : 11,575.38 = 2,171.86 : x
  2. Step 2: Convert to fraction form
    7,716.97/11,575.38 = 2,171.86/x
  3. Step 3: Cross multiply
    7,716.97x = 11,575.38 × 2,171.86
  4. Step 4: Simplify right side
    7,716.97x = 25,140,104.81
  5. Step 5: Solve for x
    x = 25,140,104.81/7,716.97
  6. Step 6: Final answer
    x = 3,257.77

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1.5x scale

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.