Home / 11,183.40-16,778.88-3,392.64

Finding the Fourth Proportional to 11,183.40, 16,778.88 and 3,392.64

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Solution

The fourth proportional to 11,183.40, 16,778.88 and 3,392.64 is: 5,090.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,183.40 : 16,778.88 = 3,392.64 : x
  2. Step 2: Convert to fraction form
    11,183.40/16,778.88 = 3,392.64/x
  3. Step 3: Cross multiply
    11,183.40x = 16,778.88 × 3,392.64
  4. Step 4: Simplify right side
    11,183.40x = 56,924,699.44
  5. Step 5: Solve for x
    x = 56,924,699.44/11,183.40
  6. Step 6: Final answer
    x = 5,090.11

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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.