Home / 17,151.29-25,676.34-12,679.28

Finding the Fourth Proportional to 17,151.29, 25,676.34 and 12,679.28

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Solution

The fourth proportional to 17,151.29, 25,676.34 and 12,679.28 is: 18,981.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,151.29 : 25,676.34 = 12,679.28 : x
  2. Step 2: Convert to fraction form
    17,151.29/25,676.34 = 12,679.28/x
  3. Step 3: Cross multiply
    17,151.29x = 25,676.34 × 12,679.28
  4. Step 4: Simplify right side
    17,151.29x = 325,557,504.24
  5. Step 5: Solve for x
    x = 325,557,504.24/17,151.29
  6. Step 6: Final answer
    x = 18,981.52

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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.