Home / 7,781.26-11,674.64-3,399.06

Finding the Fourth Proportional to 7,781.26, 11,674.64 and 3,399.06

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Solution

The fourth proportional to 7,781.26, 11,674.64 and 3,399.06 is: 5,099.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,781.26 : 11,674.64 = 3,399.06 : x
  2. Step 2: Convert to fraction form
    7,781.26/11,674.64 = 3,399.06/x
  3. Step 3: Cross multiply
    7,781.26x = 11,674.64 × 3,399.06
  4. Step 4: Simplify right side
    7,781.26x = 39,682,801.84
  5. Step 5: Solve for x
    x = 39,682,801.84/7,781.26
  6. Step 6: Final answer
    x = 5,099.79

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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.