Home / 13,604.39-20,406.69-3,744.21

Finding the Fourth Proportional to 13,604.39, 20,406.69 and 3,744.21

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Solution

The fourth proportional to 13,604.39, 20,406.69 and 3,744.21 is: 5,616.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,604.39 : 20,406.69 = 3,744.21 : x
  2. Step 2: Convert to fraction form
    13,604.39/20,406.69 = 3,744.21/x
  3. Step 3: Cross multiply
    13,604.39x = 20,406.69 × 3,744.21
  4. Step 4: Simplify right side
    13,604.39x = 76,407,009.29
  5. Step 5: Solve for x
    x = 76,407,009.29/13,604.39
  6. Step 6: Final answer
    x = 5,616.35

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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.