Home / 7,414.43-11,120.83-1,867.78

Finding the Fourth Proportional to 7,414.43, 11,120.83 and 1,867.78

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Solution

The fourth proportional to 7,414.43, 11,120.83 and 1,867.78 is: 2,801.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,414.43 : 11,120.83 = 1,867.78 : x
  2. Step 2: Convert to fraction form
    7,414.43/11,120.83 = 1,867.78/x
  3. Step 3: Cross multiply
    7,414.43x = 11,120.83 × 1,867.78
  4. Step 4: Simplify right side
    7,414.43x = 20,771,263.86
  5. Step 5: Solve for x
    x = 20,771,263.86/7,414.43
  6. Step 6: Final answer
    x = 2,801.46

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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.