Home / 8,787.36-13,183.20-2,631.36

Finding the Fourth Proportional to 8,787.36, 13,183.20 and 2,631.36

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Solution

The fourth proportional to 8,787.36, 13,183.20 and 2,631.36 is: 3,947.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.36 : 13,183.20 = 2,631.36 : x
  2. Step 2: Convert to fraction form
    8,787.36/13,183.20 = 2,631.36/x
  3. Step 3: Cross multiply
    8,787.36x = 13,183.20 × 2,631.36
  4. Step 4: Simplify right side
    8,787.36x = 34,689,745.15
  5. Step 5: Solve for x
    x = 34,689,745.15/8,787.36
  6. Step 6: Final answer
    x = 3,947.69

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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.