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Finding the Fourth Proportional to 13,601.98, 18,770.90 and 8,297.29

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Solution

The fourth proportional to 13,601.98, 18,770.90 and 8,297.29 is: 11,450.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.98 : 18,770.90 = 8,297.29 : x
  2. Step 2: Convert to fraction form
    13,601.98/18,770.90 = 8,297.29/x
  3. Step 3: Cross multiply
    13,601.98x = 18,770.90 × 8,297.29
  4. Step 4: Simplify right side
    13,601.98x = 155,747,600.86
  5. Step 5: Solve for x
    x = 155,747,600.86/13,601.98
  6. Step 6: Final answer
    x = 11,450.36

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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.