Home / 11,480.77-17,221.58-3,161.43

Finding the Fourth Proportional to 11,480.77, 17,221.58 and 3,161.43

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Solution

The fourth proportional to 11,480.77, 17,221.58 and 3,161.43 is: 4,742.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,480.77 : 17,221.58 = 3,161.43 : x
  2. Step 2: Convert to fraction form
    11,480.77/17,221.58 = 3,161.43/x
  3. Step 3: Cross multiply
    11,480.77x = 17,221.58 × 3,161.43
  4. Step 4: Simplify right side
    11,480.77x = 54,444,815.71
  5. Step 5: Solve for x
    x = 54,444,815.71/11,480.77
  6. Step 6: Final answer
    x = 4,742.26

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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.