Home / 13,530.28-20,295.46-3,669.60

Finding the Fourth Proportional to 13,530.28, 20,295.46 and 3,669.60

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Solution

The fourth proportional to 13,530.28, 20,295.46 and 3,669.60 is: 5,504.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,530.28 : 20,295.46 = 3,669.60 : x
  2. Step 2: Convert to fraction form
    13,530.28/20,295.46 = 3,669.60/x
  3. Step 3: Cross multiply
    13,530.28x = 20,295.46 × 3,669.60
  4. Step 4: Simplify right side
    13,530.28x = 74,476,220.02
  5. Step 5: Solve for x
    x = 74,476,220.02/13,530.28
  6. Step 6: Final answer
    x = 5,504.41

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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.