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Finding the Fourth Proportional to 7,896.98, 11,850.75 and 3,279.98

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Solution

The fourth proportional to 7,896.98, 11,850.75 and 3,279.98 is: 4,922.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,896.98 : 11,850.75 = 3,279.98 : x
  2. Step 2: Convert to fraction form
    7,896.98/11,850.75 = 3,279.98/x
  3. Step 3: Cross multiply
    7,896.98x = 11,850.75 × 3,279.98
  4. Step 4: Simplify right side
    7,896.98x = 38,870,222.99
  5. Step 5: Solve for x
    x = 38,870,222.99/7,896.98
  6. Step 6: Final answer
    x = 4,922.16

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1.5x scale

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.