Home / 18,738.46-28,110.74-8,753.19

Finding the Fourth Proportional to 18,738.46, 28,110.74 and 8,753.19

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Solution

The fourth proportional to 18,738.46, 28,110.74 and 8,753.19 is: 13,131.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738.46 : 28,110.74 = 8,753.19 : x
  2. Step 2: Convert to fraction form
    18,738.46/28,110.74 = 8,753.19/x
  3. Step 3: Cross multiply
    18,738.46x = 28,110.74 × 8,753.19
  4. Step 4: Simplify right side
    18,738.46x = 246,058,648.26
  5. Step 5: Solve for x
    x = 246,058,648.26/18,738.46
  6. Step 6: Final answer
    x = 13,131.21

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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.