Home / 13,786.74-20,684.72-5,469.15

Finding the Fourth Proportional to 13,786.74, 20,684.72 and 5,469.15

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Solution

The fourth proportional to 13,786.74, 20,684.72 and 5,469.15 is: 8,205.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,786.74 : 20,684.72 = 5,469.15 : x
  2. Step 2: Convert to fraction form
    13,786.74/20,684.72 = 5,469.15/x
  3. Step 3: Cross multiply
    13,786.74x = 20,684.72 × 5,469.15
  4. Step 4: Simplify right side
    13,786.74x = 113,127,809.04
  5. Step 5: Solve for x
    x = 113,127,809.04/13,786.74
  6. Step 6: Final answer
    x = 8,205.55

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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.