Home / 8,159.40-12,230.66-3,222.25

Finding the Fourth Proportional to 8,159.40, 12,230.66 and 3,222.25

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Solution

The fourth proportional to 8,159.40, 12,230.66 and 3,222.25 is: 4,830.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,159.40 : 12,230.66 = 3,222.25 : x
  2. Step 2: Convert to fraction form
    8,159.40/12,230.66 = 3,222.25/x
  3. Step 3: Cross multiply
    8,159.40x = 12,230.66 × 3,222.25
  4. Step 4: Simplify right side
    8,159.40x = 39,410,221.66
  5. Step 5: Solve for x
    x = 39,410,221.66/8,159.40
  6. Step 6: Final answer
    x = 4,830.04

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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.