Home / 10,493.82-15,740.76-3,919.92

Finding the Fourth Proportional to 10,493.82, 15,740.76 and 3,919.92

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Solution

The fourth proportional to 10,493.82, 15,740.76 and 3,919.92 is: 5,879.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,493.82 : 15,740.76 = 3,919.92 : x
  2. Step 2: Convert to fraction form
    10,493.82/15,740.76 = 3,919.92/x
  3. Step 3: Cross multiply
    10,493.82x = 15,740.76 × 3,919.92
  4. Step 4: Simplify right side
    10,493.82x = 61,702,519.94
  5. Step 5: Solve for x
    x = 61,702,519.94/10,493.82
  6. Step 6: Final answer
    x = 5,879.89

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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.