Home / 13,450.10-18,561.49-7,481.41

Finding the Fourth Proportional to 13,450.10, 18,561.49 and 7,481.41

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Solution

The fourth proportional to 13,450.10, 18,561.49 and 7,481.41 is: 10,324.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,450.10 : 18,561.49 = 7,481.41 : x
  2. Step 2: Convert to fraction form
    13,450.10/18,561.49 = 7,481.41/x
  3. Step 3: Cross multiply
    13,450.10x = 18,561.49 × 7,481.41
  4. Step 4: Simplify right side
    13,450.10x = 138,865,986.69
  5. Step 5: Solve for x
    x = 138,865,986.69/13,450.10
  6. Step 6: Final answer
    x = 10,324.54

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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.