Home / 6,980.72-9,633.39-3,996.57

Finding the Fourth Proportional to 6,980.72, 9,633.39 and 3,996.57

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Solution

The fourth proportional to 6,980.72, 9,633.39 and 3,996.57 is: 5,515.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,980.72 : 9,633.39 = 3,996.57 : x
  2. Step 2: Convert to fraction form
    6,980.72/9,633.39 = 3,996.57/x
  3. Step 3: Cross multiply
    6,980.72x = 9,633.39 × 3,996.57
  4. Step 4: Simplify right side
    6,980.72x = 38,500,546.39
  5. Step 5: Solve for x
    x = 38,500,546.39/6,980.72
  6. Step 6: Final answer
    x = 5,515.27

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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.