Home / 17,172.38-25,749.09-5,322.86

Finding the Fourth Proportional to 17,172.38, 25,749.09 and 5,322.86

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Solution

The fourth proportional to 17,172.38, 25,749.09 and 5,322.86 is: 7,981.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,172.38 : 25,749.09 = 5,322.86 : x
  2. Step 2: Convert to fraction form
    17,172.38/25,749.09 = 5,322.86/x
  3. Step 3: Cross multiply
    17,172.38x = 25,749.09 × 5,322.86
  4. Step 4: Simplify right side
    17,172.38x = 137,058,865.57
  5. Step 5: Solve for x
    x = 137,058,865.57/17,172.38
  6. Step 6: Final answer
    x = 7,981.36

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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.