Home / 8,308.20-12,457.13-2,760.11

Finding the Fourth Proportional to 8,308.20, 12,457.13 and 2,760.11

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Solution

The fourth proportional to 8,308.20, 12,457.13 and 2,760.11 is: 4,138.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,308.20 : 12,457.13 = 2,760.11 : x
  2. Step 2: Convert to fraction form
    8,308.20/12,457.13 = 2,760.11/x
  3. Step 3: Cross multiply
    8,308.20x = 12,457.13 × 2,760.11
  4. Step 4: Simplify right side
    8,308.20x = 34,383,019.71
  5. Step 5: Solve for x
    x = 34,383,019.71/8,308.20
  6. Step 6: Final answer
    x = 4,138.44

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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.