Home / 11,338.89-17,005.26-7,172.64

Finding the Fourth Proportional to 11,338.89, 17,005.26 and 7,172.64

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Solution

The fourth proportional to 11,338.89, 17,005.26 and 7,172.64 is: 10,757.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,338.89 : 17,005.26 = 7,172.64 : x
  2. Step 2: Convert to fraction form
    11,338.89/17,005.26 = 7,172.64/x
  3. Step 3: Cross multiply
    11,338.89x = 17,005.26 × 7,172.64
  4. Step 4: Simplify right side
    11,338.89x = 121,972,608.09
  5. Step 5: Solve for x
    x = 121,972,608.09/11,338.89
  6. Step 6: Final answer
    x = 10,757.01

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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.