Home / 13,517.82-20,276.65-3,657.08

Finding the Fourth Proportional to 13,517.82, 20,276.65 and 3,657.08

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Solution

The fourth proportional to 13,517.82, 20,276.65 and 3,657.08 is: 5,485.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.82 : 20,276.65 = 3,657.08 : x
  2. Step 2: Convert to fraction form
    13,517.82/20,276.65 = 3,657.08/x
  3. Step 3: Cross multiply
    13,517.82x = 20,276.65 × 3,657.08
  4. Step 4: Simplify right side
    13,517.82x = 74,153,331.18
  5. Step 5: Solve for x
    x = 74,153,331.18/13,517.82
  6. Step 6: Final answer
    x = 5,485.60

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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.