Home / 8,391.82-12,586.86-2,845.02

Finding the Fourth Proportional to 8,391.82, 12,586.86 and 2,845.02

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Solution

The fourth proportional to 8,391.82, 12,586.86 and 2,845.02 is: 4,267.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391.82 : 12,586.86 = 2,845.02 : x
  2. Step 2: Convert to fraction form
    8,391.82/12,586.86 = 2,845.02/x
  3. Step 3: Cross multiply
    8,391.82x = 12,586.86 × 2,845.02
  4. Step 4: Simplify right side
    8,391.82x = 35,809,868.44
  5. Step 5: Solve for x
    x = 35,809,868.44/8,391.82
  6. Step 6: Final answer
    x = 4,267.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.