Home / 7,993.26-11,990.93-4,290.42

Finding the Fourth Proportional to 7,993.26, 11,990.93 and 4,290.42

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Solution

The fourth proportional to 7,993.26, 11,990.93 and 4,290.42 is: 6,436.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,993.26 : 11,990.93 = 4,290.42 : x
  2. Step 2: Convert to fraction form
    7,993.26/11,990.93 = 4,290.42/x
  3. Step 3: Cross multiply
    7,993.26x = 11,990.93 × 4,290.42
  4. Step 4: Simplify right side
    7,993.26x = 51,446,104.44
  5. Step 5: Solve for x
    x = 51,446,104.44/7,993.26
  6. Step 6: Final answer
    x = 6,436.19

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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.