Home / 8,155.53-12,238.17-2,961.81

Finding the Fourth Proportional to 8,155.53, 12,238.17 and 2,961.81

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Solution

The fourth proportional to 8,155.53, 12,238.17 and 2,961.81 is: 4,444.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.53 : 12,238.17 = 2,961.81 : x
  2. Step 2: Convert to fraction form
    8,155.53/12,238.17 = 2,961.81/x
  3. Step 3: Cross multiply
    8,155.53x = 12,238.17 × 2,961.81
  4. Step 4: Simplify right side
    8,155.53x = 36,247,134.29
  5. Step 5: Solve for x
    x = 36,247,134.29/8,155.53
  6. Step 6: Final answer
    x = 4,444.49

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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.