Home / 7,540.20-11,288.70-7,324.20

Finding the Fourth Proportional to 7,540.20, 11,288.70 and 7,324.20

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Solution

The fourth proportional to 7,540.20, 11,288.70 and 7,324.20 is: 10,965.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540.20 : 11,288.70 = 7,324.20 : x
  2. Step 2: Convert to fraction form
    7,540.20/11,288.70 = 7,324.20/x
  3. Step 3: Cross multiply
    7,540.20x = 11,288.70 × 7,324.20
  4. Step 4: Simplify right side
    7,540.20x = 82,680,696.54
  5. Step 5: Solve for x
    x = 82,680,696.54/7,540.20
  6. Step 6: Final answer
    x = 10,965.32

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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.