Home / 13,674.72-20,511.76-3,813.60

Finding the Fourth Proportional to 13,674.72, 20,511.76 and 3,813.60

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Solution

The fourth proportional to 13,674.72, 20,511.76 and 3,813.60 is: 5,720.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,674.72 : 20,511.76 = 3,813.60 : x
  2. Step 2: Convert to fraction form
    13,674.72/20,511.76 = 3,813.60/x
  3. Step 3: Cross multiply
    13,674.72x = 20,511.76 × 3,813.60
  4. Step 4: Simplify right side
    13,674.72x = 78,223,647.94
  5. Step 5: Solve for x
    x = 78,223,647.94/13,674.72
  6. Step 6: Final answer
    x = 5,720.31

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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.