Home / 16,921-25,383.92-5,235.13

Finding the Fourth Proportional to 16,921, 25,383.92 and 5,235.13

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Solution

The fourth proportional to 16,921, 25,383.92 and 5,235.13 is: 7,853.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,921 : 25,383.92 = 5,235.13 : x
  2. Step 2: Convert to fraction form
    16,921/25,383.92 = 5,235.13/x
  3. Step 3: Cross multiply
    16,921x = 25,383.92 × 5,235.13
  4. Step 4: Simplify right side
    16,921x = 132,888,121.11
  5. Step 5: Solve for x
    x = 132,888,121.11/16,921
  6. Step 6: Final answer
    x = 7,853.44

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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.