Home / 8,421.50-12,634.07-3,227.38

Finding the Fourth Proportional to 8,421.50, 12,634.07 and 3,227.38

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Solution

The fourth proportional to 8,421.50, 12,634.07 and 3,227.38 is: 4,841.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,421.50 : 12,634.07 = 3,227.38 : x
  2. Step 2: Convert to fraction form
    8,421.50/12,634.07 = 3,227.38/x
  3. Step 3: Cross multiply
    8,421.50x = 12,634.07 × 3,227.38
  4. Step 4: Simplify right side
    8,421.50x = 40,774,944.84
  5. Step 5: Solve for x
    x = 40,774,944.84/8,421.50
  6. Step 6: Final answer
    x = 4,841.77

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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.