Home / 7,715.97-11,573.88-2,170.86

Finding the Fourth Proportional to 7,715.97, 11,573.88 and 2,170.86

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Solution

The fourth proportional to 7,715.97, 11,573.88 and 2,170.86 is: 3,256.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.97 : 11,573.88 = 2,170.86 : x
  2. Step 2: Convert to fraction form
    7,715.97/11,573.88 = 2,170.86/x
  3. Step 3: Cross multiply
    7,715.97x = 11,573.88 × 2,170.86
  4. Step 4: Simplify right side
    7,715.97x = 25,125,273.14
  5. Step 5: Solve for x
    x = 25,125,273.14/7,715.97
  6. Step 6: Final answer
    x = 3,256.27

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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.