Home / 11,135.87-16,702.22-2,815.37

Finding the Fourth Proportional to 11,135.87, 16,702.22 and 2,815.37

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Solution

The fourth proportional to 11,135.87, 16,702.22 and 2,815.37 is: 4,222.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.87 : 16,702.22 = 2,815.37 : x
  2. Step 2: Convert to fraction form
    11,135.87/16,702.22 = 2,815.37/x
  3. Step 3: Cross multiply
    11,135.87x = 16,702.22 × 2,815.37
  4. Step 4: Simplify right side
    11,135.87x = 47,022,831.53
  5. Step 5: Solve for x
    x = 47,022,831.53/11,135.87
  6. Step 6: Final answer
    x = 4,222.65

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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.