Home / 10,827.87-16,242.39-3,431.79

Finding the Fourth Proportional to 10,827.87, 16,242.39 and 3,431.79

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Solution

The fourth proportional to 10,827.87, 16,242.39 and 3,431.79 is: 5,147.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,827.87 : 16,242.39 = 3,431.79 : x
  2. Step 2: Convert to fraction form
    10,827.87/16,242.39 = 3,431.79/x
  3. Step 3: Cross multiply
    10,827.87x = 16,242.39 × 3,431.79
  4. Step 4: Simplify right side
    10,827.87x = 55,740,471.58
  5. Step 5: Solve for x
    x = 55,740,471.58/10,827.87
  6. Step 6: Final answer
    x = 5,147.87

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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.