Home / 7,431.73-11,147.60-3,538.87

Finding the Fourth Proportional to 7,431.73, 11,147.60 and 3,538.87

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Solution

The fourth proportional to 7,431.73, 11,147.60 and 3,538.87 is: 5,308.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.73 : 11,147.60 = 3,538.87 : x
  2. Step 2: Convert to fraction form
    7,431.73/11,147.60 = 3,538.87/x
  3. Step 3: Cross multiply
    7,431.73x = 11,147.60 × 3,538.87
  4. Step 4: Simplify right side
    7,431.73x = 39,449,907.21
  5. Step 5: Solve for x
    x = 39,449,907.21/7,431.73
  6. Step 6: Final answer
    x = 5,308.31

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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.