Home / 18,540.21-25,586.15-10,156.71

Finding the Fourth Proportional to 18,540.21, 25,586.15 and 10,156.71

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Solution

The fourth proportional to 18,540.21, 25,586.15 and 10,156.71 is: 14,016.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,540.21 : 25,586.15 = 10,156.71 : x
  2. Step 2: Convert to fraction form
    18,540.21/25,586.15 = 10,156.71/x
  3. Step 3: Cross multiply
    18,540.21x = 25,586.15 × 10,156.71
  4. Step 4: Simplify right side
    18,540.21x = 259,871,054.78
  5. Step 5: Solve for x
    x = 259,871,054.78/18,540.21
  6. Step 6: Final answer
    x = 14,016.62

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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.