Home / 7,939.50-11,913.57-3,835.50

Finding the Fourth Proportional to 7,939.50, 11,913.57 and 3,835.50

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Solution

The fourth proportional to 7,939.50, 11,913.57 and 3,835.50 is: 5,755.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.50 : 11,913.57 = 3,835.50 : x
  2. Step 2: Convert to fraction form
    7,939.50/11,913.57 = 3,835.50/x
  3. Step 3: Cross multiply
    7,939.50x = 11,913.57 × 3,835.50
  4. Step 4: Simplify right side
    7,939.50x = 45,694,497.74
  5. Step 5: Solve for x
    x = 45,694,497.74/7,939.50
  6. Step 6: Final answer
    x = 5,755.34

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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.