Home / 8,191.36-12,290.88-4,026.88

Finding the Fourth Proportional to 8,191.36, 12,290.88 and 4,026.88

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Solution

The fourth proportional to 8,191.36, 12,290.88 and 4,026.88 is: 6,042.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,191.36 : 12,290.88 = 4,026.88 : x
  2. Step 2: Convert to fraction form
    8,191.36/12,290.88 = 4,026.88/x
  3. Step 3: Cross multiply
    8,191.36x = 12,290.88 × 4,026.88
  4. Step 4: Simplify right side
    8,191.36x = 49,493,898.85
  5. Step 5: Solve for x
    x = 49,493,898.85/8,191.36
  6. Step 6: Final answer
    x = 6,042.21

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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.