Home / 8,267.19-12,380.73-3,885.90

Finding the Fourth Proportional to 8,267.19, 12,380.73 and 3,885.90

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Solution

The fourth proportional to 8,267.19, 12,380.73 and 3,885.90 is: 5,819.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,267.19 : 12,380.73 = 3,885.90 : x
  2. Step 2: Convert to fraction form
    8,267.19/12,380.73 = 3,885.90/x
  3. Step 3: Cross multiply
    8,267.19x = 12,380.73 × 3,885.90
  4. Step 4: Simplify right side
    8,267.19x = 48,110,278.71
  5. Step 5: Solve for x
    x = 48,110,278.71/8,267.19
  6. Step 6: Final answer
    x = 5,819.42

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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.