Home / 8,137.18-12,201.45-3,977.92

Finding the Fourth Proportional to 8,137.18, 12,201.45 and 3,977.92

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Solution

The fourth proportional to 8,137.18, 12,201.45 and 3,977.92 is: 5,964.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,137.18 : 12,201.45 = 3,977.92 : x
  2. Step 2: Convert to fraction form
    8,137.18/12,201.45 = 3,977.92/x
  3. Step 3: Cross multiply
    8,137.18x = 12,201.45 × 3,977.92
  4. Step 4: Simplify right side
    8,137.18x = 48,536,391.98
  5. Step 5: Solve for x
    x = 48,536,391.98/8,137.18
  6. Step 6: Final answer
    x = 5,964.77

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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.