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Finding the Fourth Proportional to 11,963.45, 17,936.29 and 8,255.12

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Solution

The fourth proportional to 11,963.45, 17,936.29 and 8,255.12 is: 12,376.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,963.45 : 17,936.29 = 8,255.12 : x
  2. Step 2: Convert to fraction form
    11,963.45/17,936.29 = 8,255.12/x
  3. Step 3: Cross multiply
    11,963.45x = 17,936.29 × 8,255.12
  4. Step 4: Simplify right side
    11,963.45x = 148,066,100.51
  5. Step 5: Solve for x
    x = 148,066,100.51/11,963.45
  6. Step 6: Final answer
    x = 12,376.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.