Home / 11,622.52-17,428.11-4,123.54

Finding the Fourth Proportional to 11,622.52, 17,428.11 and 4,123.54

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Solution

The fourth proportional to 11,622.52, 17,428.11 and 4,123.54 is: 6,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,622.52 : 17,428.11 = 4,123.54 : x
  2. Step 2: Convert to fraction form
    11,622.52/17,428.11 = 4,123.54/x
  3. Step 3: Cross multiply
    11,622.52x = 17,428.11 × 4,123.54
  4. Step 4: Simplify right side
    11,622.52x = 71,865,508.71
  5. Step 5: Solve for x
    x = 71,865,508.71/11,622.52
  6. Step 6: Final answer
    x = 6,183.30

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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.