Home / 13,169.58-19,754.38-5,378.39

Finding the Fourth Proportional to 13,169.58, 19,754.38 and 5,378.39

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Solution

The fourth proportional to 13,169.58, 19,754.38 and 5,378.39 is: 8,067.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,169.58 : 19,754.38 = 5,378.39 : x
  2. Step 2: Convert to fraction form
    13,169.58/19,754.38 = 5,378.39/x
  3. Step 3: Cross multiply
    13,169.58x = 19,754.38 × 5,378.39
  4. Step 4: Simplify right side
    13,169.58x = 106,246,759.85
  5. Step 5: Solve for x
    x = 106,246,759.85/13,169.58
  6. Step 6: Final answer
    x = 8,067.59

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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.