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Finding the Fourth Proportional to 12,755.98, 19,133.97 and 8,372.41

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Solution

The fourth proportional to 12,755.98, 19,133.97 and 8,372.41 is: 12,558.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,755.98 : 19,133.97 = 8,372.41 : x
  2. Step 2: Convert to fraction form
    12,755.98/19,133.97 = 8,372.41/x
  3. Step 3: Cross multiply
    12,755.98x = 19,133.97 × 8,372.41
  4. Step 4: Simplify right side
    12,755.98x = 160,197,441.77
  5. Step 5: Solve for x
    x = 160,197,441.77/12,755.98
  6. Step 6: Final answer
    x = 12,558.62

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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.