Home / 13,821.35-20,736.41-4,936.48

Finding the Fourth Proportional to 13,821.35, 20,736.41 and 4,936.48

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Solution

The fourth proportional to 13,821.35, 20,736.41 and 4,936.48 is: 7,406.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.35 : 20,736.41 = 4,936.48 : x
  2. Step 2: Convert to fraction form
    13,821.35/20,736.41 = 4,936.48/x
  3. Step 3: Cross multiply
    13,821.35x = 20,736.41 × 4,936.48
  4. Step 4: Simplify right side
    13,821.35x = 102,364,873.24
  5. Step 5: Solve for x
    x = 102,364,873.24/13,821.35
  6. Step 6: Final answer
    x = 7,406.29

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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.