Home / 8,730.45-13,091.58-3,179.88

Finding the Fourth Proportional to 8,730.45, 13,091.58 and 3,179.88

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Solution

The fourth proportional to 8,730.45, 13,091.58 and 3,179.88 is: 4,768.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,730.45 : 13,091.58 = 3,179.88 : x
  2. Step 2: Convert to fraction form
    8,730.45/13,091.58 = 3,179.88/x
  3. Step 3: Cross multiply
    8,730.45x = 13,091.58 × 3,179.88
  4. Step 4: Simplify right side
    8,730.45x = 41,629,653.41
  5. Step 5: Solve for x
    x = 41,629,653.41/8,730.45
  6. Step 6: Final answer
    x = 4,768.33

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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.