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Finding the Fourth Proportional to 13,906.94, 19,190.88 and 8,248.10

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Solution

The fourth proportional to 13,906.94, 19,190.88 and 8,248.10 is: 11,381.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906.94 : 19,190.88 = 8,248.10 : x
  2. Step 2: Convert to fraction form
    13,906.94/19,190.88 = 8,248.10/x
  3. Step 3: Cross multiply
    13,906.94x = 19,190.88 × 8,248.10
  4. Step 4: Simplify right side
    13,906.94x = 158,288,297.33
  5. Step 5: Solve for x
    x = 158,288,297.33/13,906.94
  6. Step 6: Final answer
    x = 11,381.96

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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.