Home / 11,515.28-17,273.28-3,724.88

Finding the Fourth Proportional to 11,515.28, 17,273.28 and 3,724.88

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Solution

The fourth proportional to 11,515.28, 17,273.28 and 3,724.88 is: 5,587.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,515.28 : 17,273.28 = 3,724.88 : x
  2. Step 2: Convert to fraction form
    11,515.28/17,273.28 = 3,724.88/x
  3. Step 3: Cross multiply
    11,515.28x = 17,273.28 × 3,724.88
  4. Step 4: Simplify right side
    11,515.28x = 64,340,895.21
  5. Step 5: Solve for x
    x = 64,340,895.21/11,515.28
  6. Step 6: Final answer
    x = 5,587.44

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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.