Home / 13,858.36-20,790.62-3,996.87

Finding the Fourth Proportional to 13,858.36, 20,790.62 and 3,996.87

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Solution

The fourth proportional to 13,858.36, 20,790.62 and 3,996.87 is: 5,996.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,858.36 : 20,790.62 = 3,996.87 : x
  2. Step 2: Convert to fraction form
    13,858.36/20,790.62 = 3,996.87/x
  3. Step 3: Cross multiply
    13,858.36x = 20,790.62 × 3,996.87
  4. Step 4: Simplify right side
    13,858.36x = 83,097,405.36
  5. Step 5: Solve for x
    x = 83,097,405.36/13,858.36
  6. Step 6: Final answer
    x = 5,996.19

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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.