Home / 13,755.24-18,982.28-8,450.04

Finding the Fourth Proportional to 13,755.24, 18,982.28 and 8,450.04

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Solution

The fourth proportional to 13,755.24, 18,982.28 and 8,450.04 is: 11,661.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.24 : 18,982.28 = 8,450.04 : x
  2. Step 2: Convert to fraction form
    13,755.24/18,982.28 = 8,450.04/x
  3. Step 3: Cross multiply
    13,755.24x = 18,982.28 × 8,450.04
  4. Step 4: Simplify right side
    13,755.24x = 160,401,025.29
  5. Step 5: Solve for x
    x = 160,401,025.29/13,755.24
  6. Step 6: Final answer
    x = 11,661.09

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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.