Home / 11,174.42-15,414.36-7,133.88

Finding the Fourth Proportional to 11,174.42, 15,414.36 and 7,133.88

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Solution

The fourth proportional to 11,174.42, 15,414.36 and 7,133.88 is: 9,840.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,174.42 : 15,414.36 = 7,133.88 : x
  2. Step 2: Convert to fraction form
    11,174.42/15,414.36 = 7,133.88/x
  3. Step 3: Cross multiply
    11,174.42x = 15,414.36 × 7,133.88
  4. Step 4: Simplify right side
    11,174.42x = 109,964,194.52
  5. Step 5: Solve for x
    x = 109,964,194.52/11,174.42
  6. Step 6: Final answer
    x = 9,840.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.