Home / 9,121.82-13,684.92-3,197.84

Finding the Fourth Proportional to 9,121.82, 13,684.92 and 3,197.84

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Solution

The fourth proportional to 9,121.82, 13,684.92 and 3,197.84 is: 4,797.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.82 : 13,684.92 = 3,197.84 : x
  2. Step 2: Convert to fraction form
    9,121.82/13,684.92 = 3,197.84/x
  3. Step 3: Cross multiply
    9,121.82x = 13,684.92 × 3,197.84
  4. Step 4: Simplify right side
    9,121.82x = 43,762,184.57
  5. Step 5: Solve for x
    x = 43,762,184.57/9,121.82
  6. Step 6: Final answer
    x = 4,797.53

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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.