Home / 7,471.90-11,188.38-3,992.14

Finding the Fourth Proportional to 7,471.90, 11,188.38 and 3,992.14

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Solution

The fourth proportional to 7,471.90, 11,188.38 and 3,992.14 is: 5,977.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,471.90 : 11,188.38 = 3,992.14 : x
  2. Step 2: Convert to fraction form
    7,471.90/11,188.38 = 3,992.14/x
  3. Step 3: Cross multiply
    7,471.90x = 11,188.38 × 3,992.14
  4. Step 4: Simplify right side
    7,471.90x = 44,665,579.33
  5. Step 5: Solve for x
    x = 44,665,579.33/7,471.90
  6. Step 6: Final answer
    x = 5,977.81

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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.