Home / 11,513.28-17,270.28-3,722.88

Finding the Fourth Proportional to 11,513.28, 17,270.28 and 3,722.88

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Solution

The fourth proportional to 11,513.28, 17,270.28 and 3,722.88 is: 5,584.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,513.28 : 17,270.28 = 3,722.88 : x
  2. Step 2: Convert to fraction form
    11,513.28/17,270.28 = 3,722.88/x
  3. Step 3: Cross multiply
    11,513.28x = 17,270.28 × 3,722.88
  4. Step 4: Simplify right side
    11,513.28x = 64,295,180.01
  5. Step 5: Solve for x
    x = 64,295,180.01/11,513.28
  6. Step 6: Final answer
    x = 5,584.44

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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.