Home / 13,993.83-20,984.43-4,129.65

Finding the Fourth Proportional to 13,993.83, 20,984.43 and 4,129.65

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Solution

The fourth proportional to 13,993.83, 20,984.43 and 4,129.65 is: 6,192.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,993.83 : 20,984.43 = 4,129.65 : x
  2. Step 2: Convert to fraction form
    13,993.83/20,984.43 = 4,129.65/x
  3. Step 3: Cross multiply
    13,993.83x = 20,984.43 × 4,129.65
  4. Step 4: Simplify right side
    13,993.83x = 86,658,351.35
  5. Step 5: Solve for x
    x = 86,658,351.35/13,993.83
  6. Step 6: Final answer
    x = 6,192.61

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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.