Home / 18,447.96-25,427.83-13,072.20

Finding the Fourth Proportional to 18,447.96, 25,427.83 and 13,072.20

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Solution

The fourth proportional to 18,447.96, 25,427.83 and 13,072.20 is: 18,018.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,447.96 : 25,427.83 = 13,072.20 : x
  2. Step 2: Convert to fraction form
    18,447.96/25,427.83 = 13,072.20/x
  3. Step 3: Cross multiply
    18,447.96x = 25,427.83 × 13,072.20
  4. Step 4: Simplify right side
    18,447.96x = 332,397,679.33
  5. Step 5: Solve for x
    x = 332,397,679.33/18,447.96
  6. Step 6: Final answer
    x = 18,018.13

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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.