Home / 8,451.82-12,675.81-3,187.37

Finding the Fourth Proportional to 8,451.82, 12,675.81 and 3,187.37

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Solution

The fourth proportional to 8,451.82, 12,675.81 and 3,187.37 is: 4,780.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451.82 : 12,675.81 = 3,187.37 : x
  2. Step 2: Convert to fraction form
    8,451.82/12,675.81 = 3,187.37/x
  3. Step 3: Cross multiply
    8,451.82x = 12,675.81 × 3,187.37
  4. Step 4: Simplify right side
    8,451.82x = 40,402,496.52
  5. Step 5: Solve for x
    x = 40,402,496.52/8,451.82
  6. Step 6: Final answer
    x = 4,780.33

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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.