Home / 11,431.22-17,147.16-4,040.78

Finding the Fourth Proportional to 11,431.22, 17,147.16 and 4,040.78

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Solution

The fourth proportional to 11,431.22, 17,147.16 and 4,040.78 is: 6,061.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431.22 : 17,147.16 = 4,040.78 : x
  2. Step 2: Convert to fraction form
    11,431.22/17,147.16 = 4,040.78/x
  3. Step 3: Cross multiply
    11,431.22x = 17,147.16 × 4,040.78
  4. Step 4: Simplify right side
    11,431.22x = 69,287,815.45
  5. Step 5: Solve for x
    x = 69,287,815.45/11,431.22
  6. Step 6: Final answer
    x = 6,061.28

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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.