Home / 9,993.95-13,791.46-5,517.84

Finding the Fourth Proportional to 9,993.95, 13,791.46 and 5,517.84

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Solution

The fourth proportional to 9,993.95, 13,791.46 and 5,517.84 is: 7,614.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993.95 : 13,791.46 = 5,517.84 : x
  2. Step 2: Convert to fraction form
    9,993.95/13,791.46 = 5,517.84/x
  3. Step 3: Cross multiply
    9,993.95x = 13,791.46 × 5,517.84
  4. Step 4: Simplify right side
    9,993.95x = 76,099,069.65
  5. Step 5: Solve for x
    x = 76,099,069.65/9,993.95
  6. Step 6: Final answer
    x = 7,614.51

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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.