Home / 11,313.92-16,972.64-5,470.96

Finding the Fourth Proportional to 11,313.92, 16,972.64 and 5,470.96

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Solution

The fourth proportional to 11,313.92, 16,972.64 and 5,470.96 is: 8,207.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.92 : 16,972.64 = 5,470.96 : x
  2. Step 2: Convert to fraction form
    11,313.92/16,972.64 = 5,470.96/x
  3. Step 3: Cross multiply
    11,313.92x = 16,972.64 × 5,470.96
  4. Step 4: Simplify right side
    11,313.92x = 92,856,634.53
  5. Step 5: Solve for x
    x = 92,856,634.53/11,313.92
  6. Step 6: Final answer
    x = 8,207.29

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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.