Home / 11,403.56-17,105.94-3,611.78

Finding the Fourth Proportional to 11,403.56, 17,105.94 and 3,611.78

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Solution

The fourth proportional to 11,403.56, 17,105.94 and 3,611.78 is: 5,417.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,403.56 : 17,105.94 = 3,611.78 : x
  2. Step 2: Convert to fraction form
    11,403.56/17,105.94 = 3,611.78/x
  3. Step 3: Cross multiply
    11,403.56x = 17,105.94 × 3,611.78
  4. Step 4: Simplify right side
    11,403.56x = 61,782,891.97
  5. Step 5: Solve for x
    x = 61,782,891.97/11,403.56
  6. Step 6: Final answer
    x = 5,417.86

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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.