Home / 11,112.48-16,668.72-3,321.04

Finding the Fourth Proportional to 11,112.48, 16,668.72 and 3,321.04

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Solution

The fourth proportional to 11,112.48, 16,668.72 and 3,321.04 is: 4,981.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,112.48 : 16,668.72 = 3,321.04 : x
  2. Step 2: Convert to fraction form
    11,112.48/16,668.72 = 3,321.04/x
  3. Step 3: Cross multiply
    11,112.48x = 16,668.72 × 3,321.04
  4. Step 4: Simplify right side
    11,112.48x = 55,357,485.87
  5. Step 5: Solve for x
    x = 55,357,485.87/11,112.48
  6. Step 6: Final answer
    x = 4,981.56

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Similar ratio
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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.