Home / 13,961.80-20,942.70-3,573.55

Finding the Fourth Proportional to 13,961.80, 20,942.70 and 3,573.55

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Solution

The fourth proportional to 13,961.80, 20,942.70 and 3,573.55 is: 5,360.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,961.80 : 20,942.70 = 3,573.55 : x
  2. Step 2: Convert to fraction form
    13,961.80/20,942.70 = 3,573.55/x
  3. Step 3: Cross multiply
    13,961.80x = 20,942.70 × 3,573.55
  4. Step 4: Simplify right side
    13,961.80x = 74,839,785.59
  5. Step 5: Solve for x
    x = 74,839,785.59/13,961.80
  6. Step 6: Final answer
    x = 5,360.33

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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.