Home / 11,815.57-17,718.16-3,496.23

Finding the Fourth Proportional to 11,815.57, 17,718.16 and 3,496.23

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Solution

The fourth proportional to 11,815.57, 17,718.16 and 3,496.23 is: 5,242.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,815.57 : 17,718.16 = 3,496.23 : x
  2. Step 2: Convert to fraction form
    11,815.57/17,718.16 = 3,496.23/x
  3. Step 3: Cross multiply
    11,815.57x = 17,718.16 × 3,496.23
  4. Step 4: Simplify right side
    11,815.57x = 61,946,785.55
  5. Step 5: Solve for x
    x = 61,946,785.55/11,815.57
  6. Step 6: Final answer
    x = 5,242.81

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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.