Home / 11,917.32-16,449.34-7,201.96

Finding the Fourth Proportional to 11,917.32, 16,449.34 and 7,201.96

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Solution

The fourth proportional to 11,917.32, 16,449.34 and 7,201.96 is: 9,940.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.32 : 16,449.34 = 7,201.96 : x
  2. Step 2: Convert to fraction form
    11,917.32/16,449.34 = 7,201.96/x
  3. Step 3: Cross multiply
    11,917.32x = 16,449.34 × 7,201.96
  4. Step 4: Simplify right side
    11,917.32x = 118,467,488.71
  5. Step 5: Solve for x
    x = 118,467,488.71/11,917.32
  6. Step 6: Final answer
    x = 9,940.78

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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.