Home / 11,221.11-16,828.47-3,823.88

Finding the Fourth Proportional to 11,221.11, 16,828.47 and 3,823.88

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Solution

The fourth proportional to 11,221.11, 16,828.47 and 3,823.88 is: 5,734.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.11 : 16,828.47 = 3,823.88 : x
  2. Step 2: Convert to fraction form
    11,221.11/16,828.47 = 3,823.88/x
  3. Step 3: Cross multiply
    11,221.11x = 16,828.47 × 3,823.88
  4. Step 4: Simplify right side
    11,221.11x = 64,349,965.72
  5. Step 5: Solve for x
    x = 64,349,965.72/11,221.11
  6. Step 6: Final answer
    x = 5,734.72

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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.