Home / 11,731.87-16,198.26-7,257.02

Finding the Fourth Proportional to 11,731.87, 16,198.26 and 7,257.02

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Solution

The fourth proportional to 11,731.87, 16,198.26 and 7,257.02 is: 10,019.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,731.87 : 16,198.26 = 7,257.02 : x
  2. Step 2: Convert to fraction form
    11,731.87/16,198.26 = 7,257.02/x
  3. Step 3: Cross multiply
    11,731.87x = 16,198.26 × 7,257.02
  4. Step 4: Simplify right side
    11,731.87x = 117,551,096.79
  5. Step 5: Solve for x
    x = 117,551,096.79/11,731.87
  6. Step 6: Final answer
    x = 10,019.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.