Home / 13,847.24-20,770.13-3,986.13

Finding the Fourth Proportional to 13,847.24, 20,770.13 and 3,986.13

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Solution

The fourth proportional to 13,847.24, 20,770.13 and 3,986.13 is: 5,978.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,847.24 : 20,770.13 = 3,986.13 : x
  2. Step 2: Convert to fraction form
    13,847.24/20,770.13 = 3,986.13/x
  3. Step 3: Cross multiply
    13,847.24x = 20,770.13 × 3,986.13
  4. Step 4: Simplify right side
    13,847.24x = 82,792,418.37
  5. Step 5: Solve for x
    x = 82,792,418.37/13,847.24
  6. Step 6: Final answer
    x = 5,978.99

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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.