Home / 8,377.92-12,555.24-3,690.90

Finding the Fourth Proportional to 8,377.92, 12,555.24 and 3,690.90

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Solution

The fourth proportional to 8,377.92, 12,555.24 and 3,690.90 is: 5,531.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,377.92 : 12,555.24 = 3,690.90 : x
  2. Step 2: Convert to fraction form
    8,377.92/12,555.24 = 3,690.90/x
  3. Step 3: Cross multiply
    8,377.92x = 12,555.24 × 3,690.90
  4. Step 4: Simplify right side
    8,377.92x = 46,340,135.32
  5. Step 5: Solve for x
    x = 46,340,135.32/8,377.92
  6. Step 6: Final answer
    x = 5,531.22

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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.