Home / 11,285.73-16,928.99-5,359.57

Finding the Fourth Proportional to 11,285.73, 16,928.99 and 5,359.57

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Solution

The fourth proportional to 11,285.73, 16,928.99 and 5,359.57 is: 8,039.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,285.73 : 16,928.99 = 5,359.57 : x
  2. Step 2: Convert to fraction form
    11,285.73/16,928.99 = 5,359.57/x
  3. Step 3: Cross multiply
    11,285.73x = 16,928.99 × 5,359.57
  4. Step 4: Simplify right side
    11,285.73x = 90,732,106.93
  5. Step 5: Solve for x
    x = 90,732,106.93/11,285.73
  6. Step 6: Final answer
    x = 8,039.54

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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.