Home / 7,991.18-11,027.40-4,454.72

Finding the Fourth Proportional to 7,991.18, 11,027.40 and 4,454.72

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Solution

The fourth proportional to 7,991.18, 11,027.40 and 4,454.72 is: 6,147.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,991.18 : 11,027.40 = 4,454.72 : x
  2. Step 2: Convert to fraction form
    7,991.18/11,027.40 = 4,454.72/x
  3. Step 3: Cross multiply
    7,991.18x = 11,027.40 × 4,454.72
  4. Step 4: Simplify right side
    7,991.18x = 49,123,979.33
  5. Step 5: Solve for x
    x = 49,123,979.33/7,991.18
  6. Step 6: Final answer
    x = 6,147.27

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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.