Home / 13,636.87-20,454.21-3,776.33

Finding the Fourth Proportional to 13,636.87, 20,454.21 and 3,776.33

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Solution

The fourth proportional to 13,636.87, 20,454.21 and 3,776.33 is: 5,664.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.87 : 20,454.21 = 3,776.33 : x
  2. Step 2: Convert to fraction form
    13,636.87/20,454.21 = 3,776.33/x
  3. Step 3: Cross multiply
    13,636.87x = 20,454.21 × 3,776.33
  4. Step 4: Simplify right side
    13,636.87x = 77,241,846.85
  5. Step 5: Solve for x
    x = 77,241,846.85/13,636.87
  6. Step 6: Final answer
    x = 5,664.19

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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.