Home / 7,991.20-11,027.86-4,454.33

Finding the Fourth Proportional to 7,991.20, 11,027.86 and 4,454.33

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Solution

The fourth proportional to 7,991.20, 11,027.86 and 4,454.33 is: 6,146.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,991.20 : 11,027.86 = 4,454.33 : x
  2. Step 2: Convert to fraction form
    7,991.20/11,027.86 = 4,454.33/x
  3. Step 3: Cross multiply
    7,991.20x = 11,027.86 × 4,454.33
  4. Step 4: Simplify right side
    7,991.20x = 49,121,727.63
  5. Step 5: Solve for x
    x = 49,121,727.63/7,991.20
  6. Step 6: Final answer
    x = 6,146.98

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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.