Home / 8,209.21-12,305.30-3,823.06

Finding the Fourth Proportional to 8,209.21, 12,305.30 and 3,823.06

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Solution

The fourth proportional to 8,209.21, 12,305.30 and 3,823.06 is: 5,730.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,209.21 : 12,305.30 = 3,823.06 : x
  2. Step 2: Convert to fraction form
    8,209.21/12,305.30 = 3,823.06/x
  3. Step 3: Cross multiply
    8,209.21x = 12,305.30 × 3,823.06
  4. Step 4: Simplify right side
    8,209.21x = 47,043,900.22
  5. Step 5: Solve for x
    x = 47,043,900.22/8,209.21
  6. Step 6: Final answer
    x = 5,730.62

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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.