Home / 11,813.22-17,715.42-3,914.28

Finding the Fourth Proportional to 11,813.22, 17,715.42 and 3,914.28

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Solution

The fourth proportional to 11,813.22, 17,715.42 and 3,914.28 is: 5,869.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,813.22 : 17,715.42 = 3,914.28 : x
  2. Step 2: Convert to fraction form
    11,813.22/17,715.42 = 3,914.28/x
  3. Step 3: Cross multiply
    11,813.22x = 17,715.42 × 3,914.28
  4. Step 4: Simplify right side
    11,813.22x = 69,343,114.20
  5. Step 5: Solve for x
    x = 69,343,114.20/11,813.22
  6. Step 6: Final answer
    x = 5,869.96

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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.