Home / 10,974.40-16,462.00-5,129.44

Finding the Fourth Proportional to 10,974.40, 16,462.00 and 5,129.44

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Solution

The fourth proportional to 10,974.40, 16,462.00 and 5,129.44 is: 7,694.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,974.40 : 16,462.00 = 5,129.44 : x
  2. Step 2: Convert to fraction form
    10,974.40/16,462.00 = 5,129.44/x
  3. Step 3: Cross multiply
    10,974.40x = 16,462.00 × 5,129.44
  4. Step 4: Simplify right side
    10,974.40x = 84,440,806.54
  5. Step 5: Solve for x
    x = 84,440,806.54/10,974.40
  6. Step 6: Final answer
    x = 7,694.35

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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.