Home / 12,105.14-16,704.24-11,113.70

Finding the Fourth Proportional to 12,105.14, 16,704.24 and 11,113.70

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Solution

The fourth proportional to 12,105.14, 16,704.24 and 11,113.70 is: 15,336.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,105.14 : 16,704.24 = 11,113.70 : x
  2. Step 2: Convert to fraction form
    12,105.14/16,704.24 = 11,113.70/x
  3. Step 3: Cross multiply
    12,105.14x = 16,704.24 × 11,113.70
  4. Step 4: Simplify right side
    12,105.14x = 185,645,912.09
  5. Step 5: Solve for x
    x = 185,645,912.09/12,105.14
  6. Step 6: Final answer
    x = 15,336.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.