Home / 11,007.72-15,186.96-6,288.66

Finding the Fourth Proportional to 11,007.72, 15,186.96 and 6,288.66

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Solution

The fourth proportional to 11,007.72, 15,186.96 and 6,288.66 is: 8,676.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,007.72 : 15,186.96 = 6,288.66 : x
  2. Step 2: Convert to fraction form
    11,007.72/15,186.96 = 6,288.66/x
  3. Step 3: Cross multiply
    11,007.72x = 15,186.96 × 6,288.66
  4. Step 4: Simplify right side
    11,007.72x = 95,505,627.87
  5. Step 5: Solve for x
    x = 95,505,627.87/11,007.72
  6. Step 6: Final answer
    x = 8,676.24

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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.