Home / 13,181.51-19,772.27-3,821.54

Finding the Fourth Proportional to 13,181.51, 19,772.27 and 3,821.54

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Solution

The fourth proportional to 13,181.51, 19,772.27 and 3,821.54 is: 5,732.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181.51 : 19,772.27 = 3,821.54 : x
  2. Step 2: Convert to fraction form
    13,181.51/19,772.27 = 3,821.54/x
  3. Step 3: Cross multiply
    13,181.51x = 19,772.27 × 3,821.54
  4. Step 4: Simplify right side
    13,181.51x = 75,560,520.70
  5. Step 5: Solve for x
    x = 75,560,520.70/13,181.51
  6. Step 6: Final answer
    x = 5,732.31

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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.