Home / 13,517.39-20,276.09-3,656.91

Finding the Fourth Proportional to 13,517.39, 20,276.09 and 3,656.91

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Solution

The fourth proportional to 13,517.39, 20,276.09 and 3,656.91 is: 5,485.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.39 : 20,276.09 = 3,656.91 : x
  2. Step 2: Convert to fraction form
    13,517.39/20,276.09 = 3,656.91/x
  3. Step 3: Cross multiply
    13,517.39x = 20,276.09 × 3,656.91
  4. Step 4: Simplify right side
    13,517.39x = 74,147,836.28
  5. Step 5: Solve for x
    x = 74,147,836.28/13,517.39
  6. Step 6: Final answer
    x = 5,485.37

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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.