Home / 11,731.70-17,599.98-3,940.31

Finding the Fourth Proportional to 11,731.70, 17,599.98 and 3,940.31

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Solution

The fourth proportional to 11,731.70, 17,599.98 and 3,940.31 is: 5,911.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,731.70 : 17,599.98 = 3,940.31 : x
  2. Step 2: Convert to fraction form
    11,731.70/17,599.98 = 3,940.31/x
  3. Step 3: Cross multiply
    11,731.70x = 17,599.98 × 3,940.31
  4. Step 4: Simplify right side
    11,731.70x = 69,349,435.97
  5. Step 5: Solve for x
    x = 69,349,435.97/11,731.70
  6. Step 6: Final answer
    x = 5,911.28

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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.