Home / 6,921.16-10,383.66-3,994.12

Finding the Fourth Proportional to 6,921.16, 10,383.66 and 3,994.12

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Solution

The fourth proportional to 6,921.16, 10,383.66 and 3,994.12 is: 5,992.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.16 : 10,383.66 = 3,994.12 : x
  2. Step 2: Convert to fraction form
    6,921.16/10,383.66 = 3,994.12/x
  3. Step 3: Cross multiply
    6,921.16x = 10,383.66 × 3,994.12
  4. Step 4: Simplify right side
    6,921.16x = 41,473,584.08
  5. Step 5: Solve for x
    x = 41,473,584.08/6,921.16
  6. Step 6: Final answer
    x = 5,992.29

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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.