Home / 11,993.10-16,550.55-6,615.73

Finding the Fourth Proportional to 11,993.10, 16,550.55 and 6,615.73

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Solution

The fourth proportional to 11,993.10, 16,550.55 and 6,615.73 is: 9,129.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,993.10 : 16,550.55 = 6,615.73 : x
  2. Step 2: Convert to fraction form
    11,993.10/16,550.55 = 6,615.73/x
  3. Step 3: Cross multiply
    11,993.10x = 16,550.55 × 6,615.73
  4. Step 4: Simplify right side
    11,993.10x = 109,493,958.26
  5. Step 5: Solve for x
    x = 109,493,958.26/11,993.10
  6. Step 6: Final answer
    x = 9,129.74

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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.