Home / 11,391.18-17,089.05-3,993.66

Finding the Fourth Proportional to 11,391.18, 17,089.05 and 3,993.66

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Solution

The fourth proportional to 11,391.18, 17,089.05 and 3,993.66 is: 5,991.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,391.18 : 17,089.05 = 3,993.66 : x
  2. Step 2: Convert to fraction form
    11,391.18/17,089.05 = 3,993.66/x
  3. Step 3: Cross multiply
    11,391.18x = 17,089.05 × 3,993.66
  4. Step 4: Simplify right side
    11,391.18x = 68,247,855.42
  5. Step 5: Solve for x
    x = 68,247,855.42/11,391.18
  6. Step 6: Final answer
    x = 5,991.29

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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.