Home / 11,942.08-16,478.88-6,905.92

Finding the Fourth Proportional to 11,942.08, 16,478.88 and 6,905.92

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Solution

The fourth proportional to 11,942.08, 16,478.88 and 6,905.92 is: 9,529.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.08 : 16,478.88 = 6,905.92 : x
  2. Step 2: Convert to fraction form
    11,942.08/16,478.88 = 6,905.92/x
  3. Step 3: Cross multiply
    11,942.08x = 16,478.88 × 6,905.92
  4. Step 4: Simplify right side
    11,942.08x = 113,801,826.97
  5. Step 5: Solve for x
    x = 113,801,826.97/11,942.08
  6. Step 6: Final answer
    x = 9,529.48

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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.