Home / 11,115.60-16,668.48-3,322.92

Finding the Fourth Proportional to 11,115.60, 16,668.48 and 3,322.92

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Solution

The fourth proportional to 11,115.60, 16,668.48 and 3,322.92 is: 4,982.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.60 : 16,668.48 = 3,322.92 : x
  2. Step 2: Convert to fraction form
    11,115.60/16,668.48 = 3,322.92/x
  3. Step 3: Cross multiply
    11,115.60x = 16,668.48 × 3,322.92
  4. Step 4: Simplify right side
    11,115.60x = 55,388,025.56
  5. Step 5: Solve for x
    x = 55,388,025.56/11,115.60
  6. Step 6: Final answer
    x = 4,982.91

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1.5x scale

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.