Home / 8,427.20-12,643.52-2,584.96

Finding the Fourth Proportional to 8,427.20, 12,643.52 and 2,584.96

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Solution

The fourth proportional to 8,427.20, 12,643.52 and 2,584.96 is: 3,878.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.20 : 12,643.52 = 2,584.96 : x
  2. Step 2: Convert to fraction form
    8,427.20/12,643.52 = 2,584.96/x
  3. Step 3: Cross multiply
    8,427.20x = 12,643.52 × 2,584.96
  4. Step 4: Simplify right side
    8,427.20x = 32,682,993.46
  5. Step 5: Solve for x
    x = 32,682,993.46/8,427.20
  6. Step 6: Final answer
    x = 3,878.27

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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.