Home / 13,450.20-18,561.24-7,481.94

Finding the Fourth Proportional to 13,450.20, 18,561.24 and 7,481.94

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Solution

The fourth proportional to 13,450.20, 18,561.24 and 7,481.94 is: 10,325.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,450.20 : 18,561.24 = 7,481.94 : x
  2. Step 2: Convert to fraction form
    13,450.20/18,561.24 = 7,481.94/x
  3. Step 3: Cross multiply
    13,450.20x = 18,561.24 × 7,481.94
  4. Step 4: Simplify right side
    13,450.20x = 138,874,084.01
  5. Step 5: Solve for x
    x = 138,874,084.01/13,450.20
  6. Step 6: Final answer
    x = 10,325.06

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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.