Home / 17,319.72-25,979.59-4,172.09

Finding the Fourth Proportional to 17,319.72, 25,979.59 and 4,172.09

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Solution

The fourth proportional to 17,319.72, 25,979.59 and 4,172.09 is: 6,258.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,319.72 : 25,979.59 = 4,172.09 : x
  2. Step 2: Convert to fraction form
    17,319.72/25,979.59 = 4,172.09/x
  3. Step 3: Cross multiply
    17,319.72x = 25,979.59 × 4,172.09
  4. Step 4: Simplify right side
    17,319.72x = 108,389,036.88
  5. Step 5: Solve for x
    x = 108,389,036.88/17,319.72
  6. Step 6: Final answer
    x = 6,258.13

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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.