Home / 7,947.72-11,917.53-3,013.61

Finding the Fourth Proportional to 7,947.72, 11,917.53 and 3,013.61

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Solution

The fourth proportional to 7,947.72, 11,917.53 and 3,013.61 is: 4,518.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.72 : 11,917.53 = 3,013.61 : x
  2. Step 2: Convert to fraction form
    7,947.72/11,917.53 = 3,013.61/x
  3. Step 3: Cross multiply
    7,947.72x = 11,917.53 × 3,013.61
  4. Step 4: Simplify right side
    7,947.72x = 35,914,728.00
  5. Step 5: Solve for x
    x = 35,914,728.00/7,947.72
  6. Step 6: Final answer
    x = 4,518.87

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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.