Home / 8,759.67-13,139.52-2,185.85

Finding the Fourth Proportional to 8,759.67, 13,139.52 and 2,185.85

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Solution

The fourth proportional to 8,759.67, 13,139.52 and 2,185.85 is: 3,278.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,759.67 : 13,139.52 = 2,185.85 : x
  2. Step 2: Convert to fraction form
    8,759.67/13,139.52 = 2,185.85/x
  3. Step 3: Cross multiply
    8,759.67x = 13,139.52 × 2,185.85
  4. Step 4: Simplify right side
    8,759.67x = 28,720,954.09
  5. Step 5: Solve for x
    x = 28,720,954.09/8,759.67
  6. Step 6: Final answer
    x = 3,278.77

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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.