Home / 13,647.66-20,471.49-3,786.94

Finding the Fourth Proportional to 13,647.66, 20,471.49 and 3,786.94

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Solution

The fourth proportional to 13,647.66, 20,471.49 and 3,786.94 is: 5,680.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,647.66 : 20,471.49 = 3,786.94 : x
  2. Step 2: Convert to fraction form
    13,647.66/20,471.49 = 3,786.94/x
  3. Step 3: Cross multiply
    13,647.66x = 20,471.49 × 3,786.94
  4. Step 4: Simplify right side
    13,647.66x = 77,524,369.72
  5. Step 5: Solve for x
    x = 77,524,369.72/13,647.66
  6. Step 6: Final answer
    x = 5,680.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.