Home / 11,280.32-16,921.61-3,883.80

Finding the Fourth Proportional to 11,280.32, 16,921.61 and 3,883.80

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Solution

The fourth proportional to 11,280.32, 16,921.61 and 3,883.80 is: 5,826.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,280.32 : 16,921.61 = 3,883.80 : x
  2. Step 2: Convert to fraction form
    11,280.32/16,921.61 = 3,883.80/x
  3. Step 3: Cross multiply
    11,280.32x = 16,921.61 × 3,883.80
  4. Step 4: Simplify right side
    11,280.32x = 65,720,148.92
  5. Step 5: Solve for x
    x = 65,720,148.92/11,280.32
  6. Step 6: Final answer
    x = 5,826.09

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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.