Home / 10,855.62-16,285.32-3,928.50

Finding the Fourth Proportional to 10,855.62, 16,285.32 and 3,928.50

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Solution

The fourth proportional to 10,855.62, 16,285.32 and 3,928.50 is: 5,893.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,855.62 : 16,285.32 = 3,928.50 : x
  2. Step 2: Convert to fraction form
    10,855.62/16,285.32 = 3,928.50/x
  3. Step 3: Cross multiply
    10,855.62x = 16,285.32 × 3,928.50
  4. Step 4: Simplify right side
    10,855.62x = 63,976,879.62
  5. Step 5: Solve for x
    x = 63,976,879.62/10,855.62
  6. Step 6: Final answer
    x = 5,893.43

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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.