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Finding the Fourth Proportional to 12,472.96, 17,214.83 and 11,912.44

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Solution

The fourth proportional to 12,472.96, 17,214.83 and 11,912.44 is: 16,441.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.96 : 17,214.83 = 11,912.44 : x
  2. Step 2: Convert to fraction form
    12,472.96/17,214.83 = 11,912.44/x
  3. Step 3: Cross multiply
    12,472.96x = 17,214.83 × 11,912.44
  4. Step 4: Simplify right side
    12,472.96x = 205,070,629.49
  5. Step 5: Solve for x
    x = 205,070,629.49/12,472.96
  6. Step 6: Final answer
    x = 16,441.22

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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.