Home / 13,563.54-20,345.31-3,702.60

Finding the Fourth Proportional to 13,563.54, 20,345.31 and 3,702.60

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Solution

The fourth proportional to 13,563.54, 20,345.31 and 3,702.60 is: 5,553.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,563.54 : 20,345.31 = 3,702.60 : x
  2. Step 2: Convert to fraction form
    13,563.54/20,345.31 = 3,702.60/x
  3. Step 3: Cross multiply
    13,563.54x = 20,345.31 × 3,702.60
  4. Step 4: Simplify right side
    13,563.54x = 75,330,544.81
  5. Step 5: Solve for x
    x = 75,330,544.81/13,563.54
  6. Step 6: Final answer
    x = 5,553.90

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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.