Home / 13,674.20-20,511.24-3,813.48

Finding the Fourth Proportional to 13,674.20, 20,511.24 and 3,813.48

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Solution

The fourth proportional to 13,674.20, 20,511.24 and 3,813.48 is: 5,720.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,674.20 : 20,511.24 = 3,813.48 : x
  2. Step 2: Convert to fraction form
    13,674.20/20,511.24 = 3,813.48/x
  3. Step 3: Cross multiply
    13,674.20x = 20,511.24 × 3,813.48
  4. Step 4: Simplify right side
    13,674.20x = 78,219,203.52
  5. Step 5: Solve for x
    x = 78,219,203.52/13,674.20
  6. Step 6: Final answer
    x = 5,720.20

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1.5x scale

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.