Home / 8,308.12-12,457.17-3,311.27

Finding the Fourth Proportional to 8,308.12, 12,457.17 and 3,311.27

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Solution

The fourth proportional to 8,308.12, 12,457.17 and 3,311.27 is: 4,964.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,308.12 : 12,457.17 = 3,311.27 : x
  2. Step 2: Convert to fraction form
    8,308.12/12,457.17 = 3,311.27/x
  3. Step 3: Cross multiply
    8,308.12x = 12,457.17 × 3,311.27
  4. Step 4: Simplify right side
    8,308.12x = 41,248,974.46
  5. Step 5: Solve for x
    x = 41,248,974.46/8,308.12
  6. Step 6: Final answer
    x = 4,964.90

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1.5x scale

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.