Home / 8,155.16-12,238.21-2,961.03

Finding the Fourth Proportional to 8,155.16, 12,238.21 and 2,961.03

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Solution

The fourth proportional to 8,155.16, 12,238.21 and 2,961.03 is: 4,443.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.16 : 12,238.21 = 2,961.03 : x
  2. Step 2: Convert to fraction form
    8,155.16/12,238.21 = 2,961.03/x
  3. Step 3: Cross multiply
    8,155.16x = 12,238.21 × 2,961.03
  4. Step 4: Simplify right side
    8,155.16x = 36,237,756.55
  5. Step 5: Solve for x
    x = 36,237,756.55/8,155.16
  6. Step 6: Final answer
    x = 4,443.54

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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.