Home / 8,238.75-12,357.74-2,691.39

Finding the Fourth Proportional to 8,238.75, 12,357.74 and 2,691.39

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Solution

The fourth proportional to 8,238.75, 12,357.74 and 2,691.39 is: 4,036.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,238.75 : 12,357.74 = 2,691.39 : x
  2. Step 2: Convert to fraction form
    8,238.75/12,357.74 = 2,691.39/x
  3. Step 3: Cross multiply
    8,238.75x = 12,357.74 × 2,691.39
  4. Step 4: Simplify right side
    8,238.75x = 33,259,484.40
  5. Step 5: Solve for x
    x = 33,259,484.40/8,238.75
  6. Step 6: Final answer
    x = 4,036.96

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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.