Home / 12,621.39-18,934.86-3,736.03

Finding the Fourth Proportional to 12,621.39, 18,934.86 and 3,736.03

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Solution

The fourth proportional to 12,621.39, 18,934.86 and 3,736.03 is: 5,604.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,621.39 : 18,934.86 = 3,736.03 : x
  2. Step 2: Convert to fraction form
    12,621.39/18,934.86 = 3,736.03/x
  3. Step 3: Cross multiply
    12,621.39x = 18,934.86 × 3,736.03
  4. Step 4: Simplify right side
    12,621.39x = 70,741,205.01
  5. Step 5: Solve for x
    x = 70,741,205.01/12,621.39
  6. Step 6: Final answer
    x = 5,604.87

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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.