Home / 17,072.36-25,609.18-5,385.64

Finding the Fourth Proportional to 17,072.36, 25,609.18 and 5,385.64

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Solution

The fourth proportional to 17,072.36, 25,609.18 and 5,385.64 is: 8,078.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,072.36 : 25,609.18 = 5,385.64 : x
  2. Step 2: Convert to fraction form
    17,072.36/25,609.18 = 5,385.64/x
  3. Step 3: Cross multiply
    17,072.36x = 25,609.18 × 5,385.64
  4. Step 4: Simplify right side
    17,072.36x = 137,921,824.18
  5. Step 5: Solve for x
    x = 137,921,824.18/17,072.36
  6. Step 6: Final answer
    x = 8,078.66

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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.