Home / 13,512.44-20,179.94-11,516.80

Finding the Fourth Proportional to 13,512.44, 20,179.94 and 11,516.80

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Solution

The fourth proportional to 13,512.44, 20,179.94 and 11,516.80 is: 17,199.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512.44 : 20,179.94 = 11,516.80 : x
  2. Step 2: Convert to fraction form
    13,512.44/20,179.94 = 11,516.80/x
  3. Step 3: Cross multiply
    13,512.44x = 20,179.94 × 11,516.80
  4. Step 4: Simplify right side
    13,512.44x = 232,408,327.58
  5. Step 5: Solve for x
    x = 232,408,327.58/13,512.44
  6. Step 6: Final answer
    x = 17,199.59

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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.