Home / 7,991.13-11,027.78-4,454.27

Finding the Fourth Proportional to 7,991.13, 11,027.78 and 4,454.27

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Solution

The fourth proportional to 7,991.13, 11,027.78 and 4,454.27 is: 6,146.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,991.13 : 11,027.78 = 4,454.27 : x
  2. Step 2: Convert to fraction form
    7,991.13/11,027.78 = 4,454.27/x
  3. Step 3: Cross multiply
    7,991.13x = 11,027.78 × 4,454.27
  4. Step 4: Simplify right side
    7,991.13x = 49,120,709.62
  5. Step 5: Solve for x
    x = 49,120,709.62/7,991.13
  6. Step 6: Final answer
    x = 6,146.90

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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.