Home / 11,101.81-16,659.28-4,086.75

Finding the Fourth Proportional to 11,101.81, 16,659.28 and 4,086.75

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Solution

The fourth proportional to 11,101.81, 16,659.28 and 4,086.75 is: 6,132.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,101.81 : 16,659.28 = 4,086.75 : x
  2. Step 2: Convert to fraction form
    11,101.81/16,659.28 = 4,086.75/x
  3. Step 3: Cross multiply
    11,101.81x = 16,659.28 × 4,086.75
  4. Step 4: Simplify right side
    11,101.81x = 68,082,385.87
  5. Step 5: Solve for x
    x = 68,082,385.87/11,101.81
  6. Step 6: Final answer
    x = 6,132.55

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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.