Home / 11,431.87-17,143.49-3,933.31

Finding the Fourth Proportional to 11,431.87, 17,143.49 and 3,933.31

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Solution

The fourth proportional to 11,431.87, 17,143.49 and 3,933.31 is: 5,898.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431.87 : 17,143.49 = 3,933.31 : x
  2. Step 2: Convert to fraction form
    11,431.87/17,143.49 = 3,933.31/x
  3. Step 3: Cross multiply
    11,431.87x = 17,143.49 × 3,933.31
  4. Step 4: Simplify right side
    11,431.87x = 67,430,574.93
  5. Step 5: Solve for x
    x = 67,430,574.93/11,431.87
  6. Step 6: Final answer
    x = 5,898.48

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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.