Home / 10,556.38-15,836.82-3,161.44

Finding the Fourth Proportional to 10,556.38, 15,836.82 and 3,161.44

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Solution

The fourth proportional to 10,556.38, 15,836.82 and 3,161.44 is: 4,742.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,556.38 : 15,836.82 = 3,161.44 : x
  2. Step 2: Convert to fraction form
    10,556.38/15,836.82 = 3,161.44/x
  3. Step 3: Cross multiply
    10,556.38x = 15,836.82 × 3,161.44
  4. Step 4: Simplify right side
    10,556.38x = 50,067,156.22
  5. Step 5: Solve for x
    x = 50,067,156.22/10,556.38
  6. Step 6: Final answer
    x = 4,742.83

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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.