Home / 11,621.03-17,431.38-2,855.87

Finding the Fourth Proportional to 11,621.03, 17,431.38 and 2,855.87

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Solution

The fourth proportional to 11,621.03, 17,431.38 and 2,855.87 is: 4,283.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.03 : 17,431.38 = 2,855.87 : x
  2. Step 2: Convert to fraction form
    11,621.03/17,431.38 = 2,855.87/x
  3. Step 3: Cross multiply
    11,621.03x = 17,431.38 × 2,855.87
  4. Step 4: Simplify right side
    11,621.03x = 49,781,668.04
  5. Step 5: Solve for x
    x = 49,781,668.04/11,621.03
  6. Step 6: Final answer
    x = 4,283.76

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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.