Home / 13,635.46-18,817.92-8,331.29

Finding the Fourth Proportional to 13,635.46, 18,817.92 and 8,331.29

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Solution

The fourth proportional to 13,635.46, 18,817.92 and 8,331.29 is: 11,497.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635.46 : 18,817.92 = 8,331.29 : x
  2. Step 2: Convert to fraction form
    13,635.46/18,817.92 = 8,331.29/x
  3. Step 3: Cross multiply
    13,635.46x = 18,817.92 × 8,331.29
  4. Step 4: Simplify right side
    13,635.46x = 156,777,412.97
  5. Step 5: Solve for x
    x = 156,777,412.97/13,635.46
  6. Step 6: Final answer
    x = 11,497.78

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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.