Home / 8,215.44-12,327.30-3,286.50

Finding the Fourth Proportional to 8,215.44, 12,327.30 and 3,286.50

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Solution

The fourth proportional to 8,215.44, 12,327.30 and 3,286.50 is: 4,931.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.44 : 12,327.30 = 3,286.50 : x
  2. Step 2: Convert to fraction form
    8,215.44/12,327.30 = 3,286.50/x
  3. Step 3: Cross multiply
    8,215.44x = 12,327.30 × 3,286.50
  4. Step 4: Simplify right side
    8,215.44x = 40,513,671.45
  5. Step 5: Solve for x
    x = 40,513,671.45/8,215.44
  6. Step 6: Final answer
    x = 4,931.41

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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.