Home / 7,099.85-9,791.15-5,611.33

Finding the Fourth Proportional to 7,099.85, 9,791.15 and 5,611.33

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Solution

The fourth proportional to 7,099.85, 9,791.15 and 5,611.33 is: 7,738.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,099.85 : 9,791.15 = 5,611.33 : x
  2. Step 2: Convert to fraction form
    7,099.85/9,791.15 = 5,611.33/x
  3. Step 3: Cross multiply
    7,099.85x = 9,791.15 × 5,611.33
  4. Step 4: Simplify right side
    7,099.85x = 54,941,350.18
  5. Step 5: Solve for x
    x = 54,941,350.18/7,099.85
  6. Step 6: Final answer
    x = 7,738.38

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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.