Home / 11,815.08-17,722.20-2,930.46

Finding the Fourth Proportional to 11,815.08, 17,722.20 and 2,930.46

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Solution

The fourth proportional to 11,815.08, 17,722.20 and 2,930.46 is: 4,395.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,815.08 : 17,722.20 = 2,930.46 : x
  2. Step 2: Convert to fraction form
    11,815.08/17,722.20 = 2,930.46/x
  3. Step 3: Cross multiply
    11,815.08x = 17,722.20 × 2,930.46
  4. Step 4: Simplify right side
    11,815.08x = 51,934,198.21
  5. Step 5: Solve for x
    x = 51,934,198.21/11,815.08
  6. Step 6: Final answer
    x = 4,395.59

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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.