Home / 11,112.88-16,662.84-3,319.60

Finding the Fourth Proportional to 11,112.88, 16,662.84 and 3,319.60

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Solution

The fourth proportional to 11,112.88, 16,662.84 and 3,319.60 is: 4,977.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,112.88 : 16,662.84 = 3,319.60 : x
  2. Step 2: Convert to fraction form
    11,112.88/16,662.84 = 3,319.60/x
  3. Step 3: Cross multiply
    11,112.88x = 16,662.84 × 3,319.60
  4. Step 4: Simplify right side
    11,112.88x = 55,313,963.66
  5. Step 5: Solve for x
    x = 55,313,963.66/11,112.88
  6. Step 6: Final answer
    x = 4,977.46

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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.