Home / 13,824.09-20,736.13-3,435.84

Finding the Fourth Proportional to 13,824.09, 20,736.13 and 3,435.84

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Solution

The fourth proportional to 13,824.09, 20,736.13 and 3,435.84 is: 5,153.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.09 : 20,736.13 = 3,435.84 : x
  2. Step 2: Convert to fraction form
    13,824.09/20,736.13 = 3,435.84/x
  3. Step 3: Cross multiply
    13,824.09x = 20,736.13 × 3,435.84
  4. Step 4: Simplify right side
    13,824.09x = 71,246,007.72
  5. Step 5: Solve for x
    x = 71,246,007.72/13,824.09
  6. Step 6: Final answer
    x = 5,153.76

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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.