Home / 11,271.20-16,917.60-5,730.80

Finding the Fourth Proportional to 11,271.20, 16,917.60 and 5,730.80

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Solution

The fourth proportional to 11,271.20, 16,917.60 and 5,730.80 is: 8,601.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,271.20 : 16,917.60 = 5,730.80 : x
  2. Step 2: Convert to fraction form
    11,271.20/16,917.60 = 5,730.80/x
  3. Step 3: Cross multiply
    11,271.20x = 16,917.60 × 5,730.80
  4. Step 4: Simplify right side
    11,271.20x = 96,951,382.08
  5. Step 5: Solve for x
    x = 96,951,382.08/11,271.20
  6. Step 6: Final answer
    x = 8,601.69

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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.