Home / 10,866.86-16,299.92-3,471.78

Finding the Fourth Proportional to 10,866.86, 16,299.92 and 3,471.78

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Solution

The fourth proportional to 10,866.86, 16,299.92 and 3,471.78 is: 5,207.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,866.86 : 16,299.92 = 3,471.78 : x
  2. Step 2: Convert to fraction form
    10,866.86/16,299.92 = 3,471.78/x
  3. Step 3: Cross multiply
    10,866.86x = 16,299.92 × 3,471.78
  4. Step 4: Simplify right side
    10,866.86x = 56,589,736.26
  5. Step 5: Solve for x
    x = 56,589,736.26/10,866.86
  6. Step 6: Final answer
    x = 5,207.55

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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.