Home / 19,418.91-29,122.20-8,322.63

Finding the Fourth Proportional to 19,418.91, 29,122.20 and 8,322.63

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Solution

The fourth proportional to 19,418.91, 29,122.20 and 8,322.63 is: 12,481.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,418.91 : 29,122.20 = 8,322.63 : x
  2. Step 2: Convert to fraction form
    19,418.91/29,122.20 = 8,322.63/x
  3. Step 3: Cross multiply
    19,418.91x = 29,122.20 × 8,322.63
  4. Step 4: Simplify right side
    19,418.91x = 242,373,295.39
  5. Step 5: Solve for x
    x = 242,373,295.39/19,418.91
  6. Step 6: Final answer
    x = 12,481.30

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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.