Home / 16,742.75-25,115.52-8,418.48

Finding the Fourth Proportional to 16,742.75, 25,115.52 and 8,418.48

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Solution

The fourth proportional to 16,742.75, 25,115.52 and 8,418.48 is: 12,628.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,742.75 : 25,115.52 = 8,418.48 : x
  2. Step 2: Convert to fraction form
    16,742.75/25,115.52 = 8,418.48/x
  3. Step 3: Cross multiply
    16,742.75x = 25,115.52 × 8,418.48
  4. Step 4: Simplify right side
    16,742.75x = 211,434,534.12
  5. Step 5: Solve for x
    x = 211,434,534.12/16,742.75
  6. Step 6: Final answer
    x = 12,628.42

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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.