Home / 11,277.86-16,912.80-3,880.56

Finding the Fourth Proportional to 11,277.86, 16,912.80 and 3,880.56

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Solution

The fourth proportional to 11,277.86, 16,912.80 and 3,880.56 is: 5,819.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,277.86 : 16,912.80 = 3,880.56 : x
  2. Step 2: Convert to fraction form
    11,277.86/16,912.80 = 3,880.56/x
  3. Step 3: Cross multiply
    11,277.86x = 16,912.80 × 3,880.56
  4. Step 4: Simplify right side
    11,277.86x = 65,631,103.46
  5. Step 5: Solve for x
    x = 65,631,103.46/11,277.86
  6. Step 6: Final answer
    x = 5,819.47

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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.