Home / 13,558.44-20,340.80-5,241.36

Finding the Fourth Proportional to 13,558.44, 20,340.80 and 5,241.36

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Solution

The fourth proportional to 13,558.44, 20,340.80 and 5,241.36 is: 7,863.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.44 : 20,340.80 = 5,241.36 : x
  2. Step 2: Convert to fraction form
    13,558.44/20,340.80 = 5,241.36/x
  3. Step 3: Cross multiply
    13,558.44x = 20,340.80 × 5,241.36
  4. Step 4: Simplify right side
    13,558.44x = 106,613,455.49
  5. Step 5: Solve for x
    x = 106,613,455.49/13,558.44
  6. Step 6: Final answer
    x = 7,863.25

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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.