Home / 13,704.27-20,556.37-5,378.47

Finding the Fourth Proportional to 13,704.27, 20,556.37 and 5,378.47

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Solution

The fourth proportional to 13,704.27, 20,556.37 and 5,378.47 is: 8,067.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704.27 : 20,556.37 = 5,378.47 : x
  2. Step 2: Convert to fraction form
    13,704.27/20,556.37 = 5,378.47/x
  3. Step 3: Cross multiply
    13,704.27x = 20,556.37 × 5,378.47
  4. Step 4: Simplify right side
    13,704.27x = 110,561,774.69
  5. Step 5: Solve for x
    x = 110,561,774.69/13,704.27
  6. Step 6: Final answer
    x = 8,067.69

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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.