Home / 13,517.57-20,276.28-3,656.83

Finding the Fourth Proportional to 13,517.57, 20,276.28 and 3,656.83

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Solution

The fourth proportional to 13,517.57, 20,276.28 and 3,656.83 is: 5,485.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.57 : 20,276.28 = 3,656.83 : x
  2. Step 2: Convert to fraction form
    13,517.57/20,276.28 = 3,656.83/x
  3. Step 3: Cross multiply
    13,517.57x = 20,276.28 × 3,656.83
  4. Step 4: Simplify right side
    13,517.57x = 74,146,858.30
  5. Step 5: Solve for x
    x = 74,146,858.30/13,517.57
  6. Step 6: Final answer
    x = 5,485.22

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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.