Home / 13,844.21-20,766.36-3,981.20

Finding the Fourth Proportional to 13,844.21, 20,766.36 and 3,981.20

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Solution

The fourth proportional to 13,844.21, 20,766.36 and 3,981.20 is: 5,971.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,844.21 : 20,766.36 = 3,981.20 : x
  2. Step 2: Convert to fraction form
    13,844.21/20,766.36 = 3,981.20/x
  3. Step 3: Cross multiply
    13,844.21x = 20,766.36 × 3,981.20
  4. Step 4: Simplify right side
    13,844.21x = 82,675,032.43
  5. Step 5: Solve for x
    x = 82,675,032.43/13,844.21
  6. Step 6: Final answer
    x = 5,971.81

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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.