Home / 8,170.88-11,275.20-4,813.92

Finding the Fourth Proportional to 8,170.88, 11,275.20 and 4,813.92

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Solution

The fourth proportional to 8,170.88, 11,275.20 and 4,813.92 is: 6,642.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.88 : 11,275.20 = 4,813.92 : x
  2. Step 2: Convert to fraction form
    8,170.88/11,275.20 = 4,813.92/x
  3. Step 3: Cross multiply
    8,170.88x = 11,275.20 × 4,813.92
  4. Step 4: Simplify right side
    8,170.88x = 54,277,910.78
  5. Step 5: Solve for x
    x = 54,277,910.78/8,170.88
  6. Step 6: Final answer
    x = 6,642.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.