Home / 11,946.56-16,484.96-6,640.56

Finding the Fourth Proportional to 11,946.56, 16,484.96 and 6,640.56

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Solution

The fourth proportional to 11,946.56, 16,484.96 and 6,640.56 is: 9,163.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,946.56 : 16,484.96 = 6,640.56 : x
  2. Step 2: Convert to fraction form
    11,946.56/16,484.96 = 6,640.56/x
  3. Step 3: Cross multiply
    11,946.56x = 16,484.96 × 6,640.56
  4. Step 4: Simplify right side
    11,946.56x = 109,469,365.98
  5. Step 5: Solve for x
    x = 109,469,365.98/11,946.56
  6. Step 6: Final answer
    x = 9,163.25

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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.