Home / 11,181.24-16,774.28-3,390.64

Finding the Fourth Proportional to 11,181.24, 16,774.28 and 3,390.64

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Solution

The fourth proportional to 11,181.24, 16,774.28 and 3,390.64 is: 5,086.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181.24 : 16,774.28 = 3,390.64 : x
  2. Step 2: Convert to fraction form
    11,181.24/16,774.28 = 3,390.64/x
  3. Step 3: Cross multiply
    11,181.24x = 16,774.28 × 3,390.64
  4. Step 4: Simplify right side
    11,181.24x = 56,875,544.74
  5. Step 5: Solve for x
    x = 56,875,544.74/11,181.24
  6. Step 6: Final answer
    x = 5,086.69

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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.