Home / 8,231.12-11,358.86-4,454.21

Finding the Fourth Proportional to 8,231.12, 11,358.86 and 4,454.21

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Solution

The fourth proportional to 8,231.12, 11,358.86 and 4,454.21 is: 6,146.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.12 : 11,358.86 = 4,454.21 : x
  2. Step 2: Convert to fraction form
    8,231.12/11,358.86 = 4,454.21/x
  3. Step 3: Cross multiply
    8,231.12x = 11,358.86 × 4,454.21
  4. Step 4: Simplify right side
    8,231.12x = 50,594,702.14
  5. Step 5: Solve for x
    x = 50,594,702.14/8,231.12
  6. Step 6: Final answer
    x = 6,146.76

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.