Home / 11,317.05-16,982.19-4,742.69

Finding the Fourth Proportional to 11,317.05, 16,982.19 and 4,742.69

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Solution

The fourth proportional to 11,317.05, 16,982.19 and 4,742.69 is: 7,116.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.05 : 16,982.19 = 4,742.69 : x
  2. Step 2: Convert to fraction form
    11,317.05/16,982.19 = 4,742.69/x
  3. Step 3: Cross multiply
    11,317.05x = 16,982.19 × 4,742.69
  4. Step 4: Simplify right side
    11,317.05x = 80,541,177.78
  5. Step 5: Solve for x
    x = 80,541,177.78/11,317.05
  6. Step 6: Final answer
    x = 7,116.80

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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.