Home / 11,455.56-17,183.52-7,531.80

Finding the Fourth Proportional to 11,455.56, 17,183.52 and 7,531.80

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Solution

The fourth proportional to 11,455.56, 17,183.52 and 7,531.80 is: 11,297.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.56 : 17,183.52 = 7,531.80 : x
  2. Step 2: Convert to fraction form
    11,455.56/17,183.52 = 7,531.80/x
  3. Step 3: Cross multiply
    11,455.56x = 17,183.52 × 7,531.80
  4. Step 4: Simplify right side
    11,455.56x = 129,422,835.94
  5. Step 5: Solve for x
    x = 129,422,835.94/11,455.56
  6. Step 6: Final answer
    x = 11,297.82

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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.