Home / 18,540.75-25,586.87-10,157.79

Finding the Fourth Proportional to 18,540.75, 25,586.87 and 10,157.79

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Solution

The fourth proportional to 18,540.75, 25,586.87 and 10,157.79 is: 14,018.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,540.75 : 25,586.87 = 10,157.79 : x
  2. Step 2: Convert to fraction form
    18,540.75/25,586.87 = 10,157.79/x
  3. Step 3: Cross multiply
    18,540.75x = 25,586.87 × 10,157.79
  4. Step 4: Simplify right side
    18,540.75x = 259,906,052.22
  5. Step 5: Solve for x
    x = 259,906,052.22/18,540.75
  6. Step 6: Final answer
    x = 14,018.10

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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.