Home / 8,249.21-12,368.17-3,972.68

Finding the Fourth Proportional to 8,249.21, 12,368.17 and 3,972.68

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Solution

The fourth proportional to 8,249.21, 12,368.17 and 3,972.68 is: 5,956.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,249.21 : 12,368.17 = 3,972.68 : x
  2. Step 2: Convert to fraction form
    8,249.21/12,368.17 = 3,972.68/x
  3. Step 3: Cross multiply
    8,249.21x = 12,368.17 × 3,972.68
  4. Step 4: Simplify right side
    8,249.21x = 49,134,781.60
  5. Step 5: Solve for x
    x = 49,134,781.60/8,249.21
  6. Step 6: Final answer
    x = 5,956.30

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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.