Home / 7,979.37-11,965.94-3,300.13

Finding the Fourth Proportional to 7,979.37, 11,965.94 and 3,300.13

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Solution

The fourth proportional to 7,979.37, 11,965.94 and 3,300.13 is: 4,948.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.37 : 11,965.94 = 3,300.13 : x
  2. Step 2: Convert to fraction form
    7,979.37/11,965.94 = 3,300.13/x
  3. Step 3: Cross multiply
    7,979.37x = 11,965.94 × 3,300.13
  4. Step 4: Simplify right side
    7,979.37x = 39,489,157.57
  5. Step 5: Solve for x
    x = 39,489,157.57/7,979.37
  6. Step 6: Final answer
    x = 4,948.91

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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.