Home / 10,974.20-16,466.54-5,129.96

Finding the Fourth Proportional to 10,974.20, 16,466.54 and 5,129.96

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Solution

The fourth proportional to 10,974.20, 16,466.54 and 5,129.96 is: 7,697.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,974.20 : 16,466.54 = 5,129.96 : x
  2. Step 2: Convert to fraction form
    10,974.20/16,466.54 = 5,129.96/x
  3. Step 3: Cross multiply
    10,974.20x = 16,466.54 × 5,129.96
  4. Step 4: Simplify right side
    10,974.20x = 84,472,691.54
  5. Step 5: Solve for x
    x = 84,472,691.54/10,974.20
  6. Step 6: Final answer
    x = 7,697.39

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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.