Home / 13,450.23-18,561.42-7,481.97

Finding the Fourth Proportional to 13,450.23, 18,561.42 and 7,481.97

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Solution

The fourth proportional to 13,450.23, 18,561.42 and 7,481.97 is: 10,325.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,450.23 : 18,561.42 = 7,481.97 : x
  2. Step 2: Convert to fraction form
    13,450.23/18,561.42 = 7,481.97/x
  3. Step 3: Cross multiply
    13,450.23x = 18,561.42 × 7,481.97
  4. Step 4: Simplify right side
    13,450.23x = 138,875,987.60
  5. Step 5: Solve for x
    x = 138,875,987.60/13,450.23
  6. Step 6: Final answer
    x = 10,325.18

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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.