Home / 13,451.91-20,181.10-4,217.91

Finding the Fourth Proportional to 13,451.91, 20,181.10 and 4,217.91

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Solution

The fourth proportional to 13,451.91, 20,181.10 and 4,217.91 is: 6,327.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.91 : 20,181.10 = 4,217.91 : x
  2. Step 2: Convert to fraction form
    13,451.91/20,181.10 = 4,217.91/x
  3. Step 3: Cross multiply
    13,451.91x = 20,181.10 × 4,217.91
  4. Step 4: Simplify right side
    13,451.91x = 85,122,063.50
  5. Step 5: Solve for x
    x = 85,122,063.50/13,451.91
  6. Step 6: Final answer
    x = 6,327.88

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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.