Home / 18,229.05-25,131.74-13,672.34

Finding the Fourth Proportional to 18,229.05, 25,131.74 and 13,672.34

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Solution

The fourth proportional to 18,229.05, 25,131.74 and 13,672.34 is: 18,849.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,229.05 : 25,131.74 = 13,672.34 : x
  2. Step 2: Convert to fraction form
    18,229.05/25,131.74 = 13,672.34/x
  3. Step 3: Cross multiply
    18,229.05x = 25,131.74 × 13,672.34
  4. Step 4: Simplify right side
    18,229.05x = 343,609,851.02
  5. Step 5: Solve for x
    x = 343,609,851.02/18,229.05
  6. Step 6: Final answer
    x = 18,849.58

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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.