Home / 11,285.20-16,928.06-3,889.56

Finding the Fourth Proportional to 11,285.20, 16,928.06 and 3,889.56

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Solution

The fourth proportional to 11,285.20, 16,928.06 and 3,889.56 is: 5,834.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,285.20 : 16,928.06 = 3,889.56 : x
  2. Step 2: Convert to fraction form
    11,285.20/16,928.06 = 3,889.56/x
  3. Step 3: Cross multiply
    11,285.20x = 16,928.06 × 3,889.56
  4. Step 4: Simplify right side
    11,285.20x = 65,842,705.05
  5. Step 5: Solve for x
    x = 65,842,705.05/11,285.20
  6. Step 6: Final answer
    x = 5,834.43

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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.