Home / 11,515.92-17,270.28-3,723.12

Finding the Fourth Proportional to 11,515.92, 17,270.28 and 3,723.12

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Solution

The fourth proportional to 11,515.92, 17,270.28 and 3,723.12 is: 5,583.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,515.92 : 17,270.28 = 3,723.12 : x
  2. Step 2: Convert to fraction form
    11,515.92/17,270.28 = 3,723.12/x
  3. Step 3: Cross multiply
    11,515.92x = 17,270.28 × 3,723.12
  4. Step 4: Simplify right side
    11,515.92x = 64,299,324.87
  5. Step 5: Solve for x
    x = 64,299,324.87/11,515.92
  6. Step 6: Final answer
    x = 5,583.52

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1.5x scale

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.