Home / 11,826-16,321.32-6,791.40

Finding the Fourth Proportional to 11,826, 16,321.32 and 6,791.40

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Solution

The fourth proportional to 11,826, 16,321.32 and 6,791.40 is: 9,372.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,826 : 16,321.32 = 6,791.40 : x
  2. Step 2: Convert to fraction form
    11,826/16,321.32 = 6,791.40/x
  3. Step 3: Cross multiply
    11,826x = 16,321.32 × 6,791.40
  4. Step 4: Simplify right side
    11,826x = 110,844,612.65
  5. Step 5: Solve for x
    x = 110,844,612.65/11,826
  6. Step 6: Final answer
    x = 9,372.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.