Home / 13,613.25-20,286.37-13,498.44

Finding the Fourth Proportional to 13,613.25, 20,286.37 and 13,498.44

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Solution

The fourth proportional to 13,613.25, 20,286.37 and 13,498.44 is: 20,115.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.25 : 20,286.37 = 13,498.44 : x
  2. Step 2: Convert to fraction form
    13,613.25/20,286.37 = 13,498.44/x
  3. Step 3: Cross multiply
    13,613.25x = 20,286.37 × 13,498.44
  4. Step 4: Simplify right side
    13,613.25x = 273,834,348.26
  5. Step 5: Solve for x
    x = 273,834,348.26/13,613.25
  6. Step 6: Final answer
    x = 20,115.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.