Home / 13,517.64-20,286.72-8,836.38

Finding the Fourth Proportional to 13,517.64, 20,286.72 and 8,836.38

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Solution

The fourth proportional to 13,517.64, 20,286.72 and 8,836.38 is: 13,261.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.64 : 20,286.72 = 8,836.38 : x
  2. Step 2: Convert to fraction form
    13,517.64/20,286.72 = 8,836.38/x
  3. Step 3: Cross multiply
    13,517.64x = 20,286.72 × 8,836.38
  4. Step 4: Simplify right side
    13,517.64x = 179,261,166.87
  5. Step 5: Solve for x
    x = 179,261,166.87/13,517.64
  6. Step 6: Final answer
    x = 13,261.28

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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.