Home / 7,939.83-11,909.27-3,556.11

Finding the Fourth Proportional to 7,939.83, 11,909.27 and 3,556.11

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Solution

The fourth proportional to 7,939.83, 11,909.27 and 3,556.11 is: 5,333.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.83 : 11,909.27 = 3,556.11 : x
  2. Step 2: Convert to fraction form
    7,939.83/11,909.27 = 3,556.11/x
  3. Step 3: Cross multiply
    7,939.83x = 11,909.27 × 3,556.11
  4. Step 4: Simplify right side
    7,939.83x = 42,350,656.36
  5. Step 5: Solve for x
    x = 42,350,656.36/7,939.83
  6. Step 6: Final answer
    x = 5,333.95

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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.