Home / 13,190.37-19,785.55-3,956.37

Finding the Fourth Proportional to 13,190.37, 19,785.55 and 3,956.37

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Solution

The fourth proportional to 13,190.37, 19,785.55 and 3,956.37 is: 5,934.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.37 : 19,785.55 = 3,956.37 : x
  2. Step 2: Convert to fraction form
    13,190.37/19,785.55 = 3,956.37/x
  3. Step 3: Cross multiply
    13,190.37x = 19,785.55 × 3,956.37
  4. Step 4: Simplify right side
    13,190.37x = 78,278,956.45
  5. Step 5: Solve for x
    x = 78,278,956.45/13,190.37
  6. Step 6: Final answer
    x = 5,934.55

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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.