Home / 13,505.60-20,258.44-3,644.87

Finding the Fourth Proportional to 13,505.60, 20,258.44 and 3,644.87

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Solution

The fourth proportional to 13,505.60, 20,258.44 and 3,644.87 is: 5,467.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505.60 : 20,258.44 = 3,644.87 : x
  2. Step 2: Convert to fraction form
    13,505.60/20,258.44 = 3,644.87/x
  3. Step 3: Cross multiply
    13,505.60x = 20,258.44 × 3,644.87
  4. Step 4: Simplify right side
    13,505.60x = 73,839,269.80
  5. Step 5: Solve for x
    x = 73,839,269.80/13,505.60
  6. Step 6: Final answer
    x = 5,467.31

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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.