Home / 13,439.26-20,167.66-5,119.35

Finding the Fourth Proportional to 13,439.26, 20,167.66 and 5,119.35

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Solution

The fourth proportional to 13,439.26, 20,167.66 and 5,119.35 is: 7,682.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.26 : 20,167.66 = 5,119.35 : x
  2. Step 2: Convert to fraction form
    13,439.26/20,167.66 = 5,119.35/x
  3. Step 3: Cross multiply
    13,439.26x = 20,167.66 × 5,119.35
  4. Step 4: Simplify right side
    13,439.26x = 103,245,310.22
  5. Step 5: Solve for x
    x = 103,245,310.22/13,439.26
  6. Step 6: Final answer
    x = 7,682.37

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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.