Home / 13,629.28-20,448.24-4,864

Finding the Fourth Proportional to 13,629.28, 20,448.24 and 4,864

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Solution

The fourth proportional to 13,629.28, 20,448.24 and 4,864 is: 7,297.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.28 : 20,448.24 = 4,864 : x
  2. Step 2: Convert to fraction form
    13,629.28/20,448.24 = 4,864/x
  3. Step 3: Cross multiply
    13,629.28x = 20,448.24 × 4,864
  4. Step 4: Simplify right side
    13,629.28x = 99,460,239.36
  5. Step 5: Solve for x
    x = 99,460,239.36/13,629.28
  6. Step 6: Final answer
    x = 7,297.54

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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.