Home / 13,238.94-19,858.41-3,378.22

Finding the Fourth Proportional to 13,238.94, 19,858.41 and 3,378.22

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Solution

The fourth proportional to 13,238.94, 19,858.41 and 3,378.22 is: 5,067.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238.94 : 19,858.41 = 3,378.22 : x
  2. Step 2: Convert to fraction form
    13,238.94/19,858.41 = 3,378.22/x
  3. Step 3: Cross multiply
    13,238.94x = 19,858.41 × 3,378.22
  4. Step 4: Simplify right side
    13,238.94x = 67,086,125.64
  5. Step 5: Solve for x
    x = 67,086,125.64/13,238.94
  6. Step 6: Final answer
    x = 5,067.33

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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.