Home / 11,147.08-15,383.44-6,367.82

Finding the Fourth Proportional to 11,147.08, 15,383.44 and 6,367.82

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Solution

The fourth proportional to 11,147.08, 15,383.44 and 6,367.82 is: 8,787.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.08 : 15,383.44 = 6,367.82 : x
  2. Step 2: Convert to fraction form
    11,147.08/15,383.44 = 6,367.82/x
  3. Step 3: Cross multiply
    11,147.08x = 15,383.44 × 6,367.82
  4. Step 4: Simplify right side
    11,147.08x = 97,958,976.90
  5. Step 5: Solve for x
    x = 97,958,976.90/11,147.08
  6. Step 6: Final answer
    x = 8,787.86

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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.