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Finding the Fourth Proportional to 16,986.63, 25,481.97 and 8,215.24

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Solution

The fourth proportional to 16,986.63, 25,481.97 and 8,215.24 is: 12,323.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,986.63 : 25,481.97 = 8,215.24 : x
  2. Step 2: Convert to fraction form
    16,986.63/25,481.97 = 8,215.24/x
  3. Step 3: Cross multiply
    16,986.63x = 25,481.97 × 8,215.24
  4. Step 4: Simplify right side
    16,986.63x = 209,340,578.07
  5. Step 5: Solve for x
    x = 209,340,578.07/16,986.63
  6. Step 6: Final answer
    x = 12,323.84

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1.5x scale

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.