Home / 18,157.42-25,040.59-11,777.37

Finding the Fourth Proportional to 18,157.42, 25,040.59 and 11,777.37

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Solution

The fourth proportional to 18,157.42, 25,040.59 and 11,777.37 is: 16,241.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,157.42 : 25,040.59 = 11,777.37 : x
  2. Step 2: Convert to fraction form
    18,157.42/25,040.59 = 11,777.37/x
  3. Step 3: Cross multiply
    18,157.42x = 25,040.59 × 11,777.37
  4. Step 4: Simplify right side
    18,157.42x = 294,912,293.45
  5. Step 5: Solve for x
    x = 294,912,293.45/18,157.42
  6. Step 6: Final answer
    x = 16,241.97

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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.