Home / 17,121.39-25,705.17-8,807.28

Finding the Fourth Proportional to 17,121.39, 25,705.17 and 8,807.28

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Solution

The fourth proportional to 17,121.39, 25,705.17 and 8,807.28 is: 13,222.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,121.39 : 25,705.17 = 8,807.28 : x
  2. Step 2: Convert to fraction form
    17,121.39/25,705.17 = 8,807.28/x
  3. Step 3: Cross multiply
    17,121.39x = 25,705.17 × 8,807.28
  4. Step 4: Simplify right side
    17,121.39x = 226,392,629.64
  5. Step 5: Solve for x
    x = 226,392,629.64/17,121.39
  6. Step 6: Final answer
    x = 13,222.79

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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.