Home / 13,517.72-20,276.51-3,656.96

Finding the Fourth Proportional to 13,517.72, 20,276.51 and 3,656.96

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Solution

The fourth proportional to 13,517.72, 20,276.51 and 3,656.96 is: 5,485.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.72 : 20,276.51 = 3,656.96 : x
  2. Step 2: Convert to fraction form
    13,517.72/20,276.51 = 3,656.96/x
  3. Step 3: Cross multiply
    13,517.72x = 20,276.51 × 3,656.96
  4. Step 4: Simplify right side
    13,517.72x = 74,150,266.34
  5. Step 5: Solve for x
    x = 74,150,266.34/13,517.72
  6. Step 6: Final answer
    x = 5,485.41

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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.