Home / 8,208.74-12,318.68-3,826.64

Finding the Fourth Proportional to 8,208.74, 12,318.68 and 3,826.64

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Solution

The fourth proportional to 8,208.74, 12,318.68 and 3,826.64 is: 5,742.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208.74 : 12,318.68 = 3,826.64 : x
  2. Step 2: Convert to fraction form
    8,208.74/12,318.68 = 3,826.64/x
  3. Step 3: Cross multiply
    8,208.74x = 12,318.68 × 3,826.64
  4. Step 4: Simplify right side
    8,208.74x = 47,139,194.00
  5. Step 5: Solve for x
    x = 47,139,194.00/8,208.74
  6. Step 6: Final answer
    x = 5,742.56

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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.