Home / 15,893.20-21,932.88-8,819.44

Finding the Fourth Proportional to 15,893.20, 21,932.88 and 8,819.44

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Solution

The fourth proportional to 15,893.20, 21,932.88 and 8,819.44 is: 12,170.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,893.20 : 21,932.88 = 8,819.44 : x
  2. Step 2: Convert to fraction form
    15,893.20/21,932.88 = 8,819.44/x
  3. Step 3: Cross multiply
    15,893.20x = 21,932.88 × 8,819.44
  4. Step 4: Simplify right side
    15,893.20x = 193,435,719.19
  5. Step 5: Solve for x
    x = 193,435,719.19/15,893.20
  6. Step 6: Final answer
    x = 12,170.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.