Home / 17,691.36-26,515.16-8,921.48

Finding the Fourth Proportional to 17,691.36, 26,515.16 and 8,921.48

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Solution

The fourth proportional to 17,691.36, 26,515.16 and 8,921.48 is: 13,371.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,691.36 : 26,515.16 = 8,921.48 : x
  2. Step 2: Convert to fraction form
    17,691.36/26,515.16 = 8,921.48/x
  3. Step 3: Cross multiply
    17,691.36x = 26,515.16 × 8,921.48
  4. Step 4: Simplify right side
    17,691.36x = 236,554,469.64
  5. Step 5: Solve for x
    x = 236,554,469.64/17,691.36
  6. Step 6: Final answer
    x = 13,371.19

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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.