Home / 13,260.26-19,890.41-3,399.57

Finding the Fourth Proportional to 13,260.26, 19,890.41 and 3,399.57

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Solution

The fourth proportional to 13,260.26, 19,890.41 and 3,399.57 is: 5,099.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.26 : 19,890.41 = 3,399.57 : x
  2. Step 2: Convert to fraction form
    13,260.26/19,890.41 = 3,399.57/x
  3. Step 3: Cross multiply
    13,260.26x = 19,890.41 × 3,399.57
  4. Step 4: Simplify right side
    13,260.26x = 67,618,843.25
  5. Step 5: Solve for x
    x = 67,618,843.25/13,260.26
  6. Step 6: Final answer
    x = 5,099.36

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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.