Home / 11,992.91-16,550.28-6,688.85

Finding the Fourth Proportional to 11,992.91, 16,550.28 and 6,688.85

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Solution

The fourth proportional to 11,992.91, 16,550.28 and 6,688.85 is: 9,230.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,992.91 : 16,550.28 = 6,688.85 : x
  2. Step 2: Convert to fraction form
    11,992.91/16,550.28 = 6,688.85/x
  3. Step 3: Cross multiply
    11,992.91x = 16,550.28 × 6,688.85
  4. Step 4: Simplify right side
    11,992.91x = 110,702,257.63
  5. Step 5: Solve for x
    x = 110,702,257.63/11,992.91
  6. Step 6: Final answer
    x = 9,230.65

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Double scale
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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.