Home / 7,431.36-11,154-3,923.97

Finding the Fourth Proportional to 7,431.36, 11,154 and 3,923.97

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Solution

The fourth proportional to 7,431.36, 11,154 and 3,923.97 is: 5,889.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.36 : 11,154 = 3,923.97 : x
  2. Step 2: Convert to fraction form
    7,431.36/11,154 = 3,923.97/x
  3. Step 3: Cross multiply
    7,431.36x = 11,154 × 3,923.97
  4. Step 4: Simplify right side
    7,431.36x = 43,767,961.38
  5. Step 5: Solve for x
    x = 43,767,961.38/7,431.36
  6. Step 6: Final answer
    x = 5,889.63

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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.