Home / 11,917.56-17,872.86-4,516.68

Finding the Fourth Proportional to 11,917.56, 17,872.86 and 4,516.68

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Solution

The fourth proportional to 11,917.56, 17,872.86 and 4,516.68 is: 6,773.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.56 : 17,872.86 = 4,516.68 : x
  2. Step 2: Convert to fraction form
    11,917.56/17,872.86 = 4,516.68/x
  3. Step 3: Cross multiply
    11,917.56x = 17,872.86 × 4,516.68
  4. Step 4: Simplify right side
    11,917.56x = 80,725,989.30
  5. Step 5: Solve for x
    x = 80,725,989.30/11,917.56
  6. Step 6: Final answer
    x = 6,773.70

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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.