Home / 7,414.16-11,121.24-1,867.55

Finding the Fourth Proportional to 7,414.16, 11,121.24 and 1,867.55

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Solution

The fourth proportional to 7,414.16, 11,121.24 and 1,867.55 is: 2,801.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,414.16 : 11,121.24 = 1,867.55 : x
  2. Step 2: Convert to fraction form
    7,414.16/11,121.24 = 1,867.55/x
  3. Step 3: Cross multiply
    7,414.16x = 11,121.24 × 1,867.55
  4. Step 4: Simplify right side
    7,414.16x = 20,769,449.19
  5. Step 5: Solve for x
    x = 20,769,449.19/7,414.16
  6. Step 6: Final answer
    x = 2,801.32

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Double scale
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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.