Home / 13,631.69-20,447.99-3,636.34

Finding the Fourth Proportional to 13,631.69, 20,447.99 and 3,636.34

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Solution

The fourth proportional to 13,631.69, 20,447.99 and 3,636.34 is: 5,454.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.69 : 20,447.99 = 3,636.34 : x
  2. Step 2: Convert to fraction form
    13,631.69/20,447.99 = 3,636.34/x
  3. Step 3: Cross multiply
    13,631.69x = 20,447.99 × 3,636.34
  4. Step 4: Simplify right side
    13,631.69x = 74,355,843.96
  5. Step 5: Solve for x
    x = 74,355,843.96/13,631.69
  6. Step 6: Final answer
    x = 5,454.63

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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.