Home / 11,179.24-16,771.28-3,388.64

Finding the Fourth Proportional to 11,179.24, 16,771.28 and 3,388.64

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Solution

The fourth proportional to 11,179.24, 16,771.28 and 3,388.64 is: 5,083.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.24 : 16,771.28 = 3,388.64 : x
  2. Step 2: Convert to fraction form
    11,179.24/16,771.28 = 3,388.64/x
  3. Step 3: Cross multiply
    11,179.24x = 16,771.28 × 3,388.64
  4. Step 4: Simplify right side
    11,179.24x = 56,831,830.26
  5. Step 5: Solve for x
    x = 56,831,830.26/11,179.24
  6. Step 6: Final answer
    x = 5,083.69

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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.