Home / 13,843.23-20,765.57-3,455.07

Finding the Fourth Proportional to 13,843.23, 20,765.57 and 3,455.07

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Solution

The fourth proportional to 13,843.23, 20,765.57 and 3,455.07 is: 5,182.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,843.23 : 20,765.57 = 3,455.07 : x
  2. Step 2: Convert to fraction form
    13,843.23/20,765.57 = 3,455.07/x
  3. Step 3: Cross multiply
    13,843.23x = 20,765.57 × 3,455.07
  4. Step 4: Simplify right side
    13,843.23x = 71,746,480.66
  5. Step 5: Solve for x
    x = 71,746,480.66/13,843.23
  6. Step 6: Final answer
    x = 5,182.78

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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.