Home / 7,694.18-11,516.63-3,991.33

Finding the Fourth Proportional to 7,694.18, 11,516.63 and 3,991.33

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Solution

The fourth proportional to 7,694.18, 11,516.63 and 3,991.33 is: 5,974.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,694.18 : 11,516.63 = 3,991.33 : x
  2. Step 2: Convert to fraction form
    7,694.18/11,516.63 = 3,991.33/x
  3. Step 3: Cross multiply
    7,694.18x = 11,516.63 × 3,991.33
  4. Step 4: Simplify right side
    7,694.18x = 45,966,670.82
  5. Step 5: Solve for x
    x = 45,966,670.82/7,694.18
  6. Step 6: Final answer
    x = 5,974.21

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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.