Home / 11,942.32-16,481.74-6,637.64

Finding the Fourth Proportional to 11,942.32, 16,481.74 and 6,637.64

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Solution

The fourth proportional to 11,942.32, 16,481.74 and 6,637.64 is: 9,160.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.32 : 16,481.74 = 6,637.64 : x
  2. Step 2: Convert to fraction form
    11,942.32/16,481.74 = 6,637.64/x
  3. Step 3: Cross multiply
    11,942.32x = 16,481.74 × 6,637.64
  4. Step 4: Simplify right side
    11,942.32x = 109,399,856.69
  5. Step 5: Solve for x
    x = 109,399,856.69/11,942.32
  6. Step 6: Final answer
    x = 9,160.69

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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.