Home / 11,271.36-16,906.32-3,879.36

Finding the Fourth Proportional to 11,271.36, 16,906.32 and 3,879.36

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Solution

The fourth proportional to 11,271.36, 16,906.32 and 3,879.36 is: 5,818.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,271.36 : 16,906.32 = 3,879.36 : x
  2. Step 2: Convert to fraction form
    11,271.36/16,906.32 = 3,879.36/x
  3. Step 3: Cross multiply
    11,271.36x = 16,906.32 × 3,879.36
  4. Step 4: Simplify right side
    11,271.36x = 65,585,701.56
  5. Step 5: Solve for x
    x = 65,585,701.56/11,271.36
  6. Step 6: Final answer
    x = 5,818.79

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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.