Home / 8,238.36-12,357.64-2,691.66

Finding the Fourth Proportional to 8,238.36, 12,357.64 and 2,691.66

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Solution

The fourth proportional to 8,238.36, 12,357.64 and 2,691.66 is: 4,037.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,238.36 : 12,357.64 = 2,691.66 : x
  2. Step 2: Convert to fraction form
    8,238.36/12,357.64 = 2,691.66/x
  3. Step 3: Cross multiply
    8,238.36x = 12,357.64 × 2,691.66
  4. Step 4: Simplify right side
    8,238.36x = 33,262,565.28
  5. Step 5: Solve for x
    x = 33,262,565.28/8,238.36
  6. Step 6: Final answer
    x = 4,037.52

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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.