Home / 6,979.60-9,632.38-3,996.36

Finding the Fourth Proportional to 6,979.60, 9,632.38 and 3,996.36

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Solution

The fourth proportional to 6,979.60, 9,632.38 and 3,996.36 is: 5,515.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.60 : 9,632.38 = 3,996.36 : x
  2. Step 2: Convert to fraction form
    6,979.60/9,632.38 = 3,996.36/x
  3. Step 3: Cross multiply
    6,979.60x = 9,632.38 × 3,996.36
  4. Step 4: Simplify right side
    6,979.60x = 38,494,458.14
  5. Step 5: Solve for x
    x = 38,494,458.14/6,979.60
  6. Step 6: Final answer
    x = 5,515.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.