Home / 10,869.30-16,305.26-3,847.86

Finding the Fourth Proportional to 10,869.30, 16,305.26 and 3,847.86

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Solution

The fourth proportional to 10,869.30, 16,305.26 and 3,847.86 is: 5,772.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,869.30 : 16,305.26 = 3,847.86 : x
  2. Step 2: Convert to fraction form
    10,869.30/16,305.26 = 3,847.86/x
  3. Step 3: Cross multiply
    10,869.30x = 16,305.26 × 3,847.86
  4. Step 4: Simplify right side
    10,869.30x = 62,740,338.50
  5. Step 5: Solve for x
    x = 62,740,338.50/10,869.30
  6. Step 6: Final answer
    x = 5,772.25

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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.