Home / 11,651.20-16,078.84-6,346.02

Finding the Fourth Proportional to 11,651.20, 16,078.84 and 6,346.02

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Solution

The fourth proportional to 11,651.20, 16,078.84 and 6,346.02 is: 8,757.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,651.20 : 16,078.84 = 6,346.02 : x
  2. Step 2: Convert to fraction form
    11,651.20/16,078.84 = 6,346.02/x
  3. Step 3: Cross multiply
    11,651.20x = 16,078.84 × 6,346.02
  4. Step 4: Simplify right side
    11,651.20x = 102,036,640.22
  5. Step 5: Solve for x
    x = 102,036,640.22/11,651.20
  6. Step 6: Final answer
    x = 8,757.61

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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.