Home / 11,257.21-16,881.76-3,859.68

Finding the Fourth Proportional to 11,257.21, 16,881.76 and 3,859.68

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Solution

The fourth proportional to 11,257.21, 16,881.76 and 3,859.68 is: 5,788.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,257.21 : 16,881.76 = 3,859.68 : x
  2. Step 2: Convert to fraction form
    11,257.21/16,881.76 = 3,859.68/x
  3. Step 3: Cross multiply
    11,257.21x = 16,881.76 × 3,859.68
  4. Step 4: Simplify right side
    11,257.21x = 65,158,191.44
  5. Step 5: Solve for x
    x = 65,158,191.44/11,257.21
  6. Step 6: Final answer
    x = 5,788.13

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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.