Home / 11,879.06-17,815.75-3,556.84

Finding the Fourth Proportional to 11,879.06, 17,815.75 and 3,556.84

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Solution

The fourth proportional to 11,879.06, 17,815.75 and 3,556.84 is: 5,334.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,879.06 : 17,815.75 = 3,556.84 : x
  2. Step 2: Convert to fraction form
    11,879.06/17,815.75 = 3,556.84/x
  3. Step 3: Cross multiply
    11,879.06x = 17,815.75 × 3,556.84
  4. Step 4: Simplify right side
    11,879.06x = 63,367,772.23
  5. Step 5: Solve for x
    x = 63,367,772.23/11,879.06
  6. Step 6: Final answer
    x = 5,334.41

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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.