Home / 13,450.14-18,559.80-7,481.34

Finding the Fourth Proportional to 13,450.14, 18,559.80 and 7,481.34

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Solution

The fourth proportional to 13,450.14, 18,559.80 and 7,481.34 is: 10,323.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,450.14 : 18,559.80 = 7,481.34 : x
  2. Step 2: Convert to fraction form
    13,450.14/18,559.80 = 7,481.34/x
  3. Step 3: Cross multiply
    13,450.14x = 18,559.80 × 7,481.34
  4. Step 4: Simplify right side
    13,450.14x = 138,852,174.13
  5. Step 5: Solve for x
    x = 138,852,174.13/13,450.14
  6. Step 6: Final answer
    x = 10,323.47

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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.