Home / 18,629.09-25,694.35-13,517.31

Finding the Fourth Proportional to 18,629.09, 25,694.35 and 13,517.31

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Solution

The fourth proportional to 18,629.09, 25,694.35 and 13,517.31 is: 18,643.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,629.09 : 25,694.35 = 13,517.31 : x
  2. Step 2: Convert to fraction form
    18,629.09/25,694.35 = 13,517.31/x
  3. Step 3: Cross multiply
    18,629.09x = 25,694.35 × 13,517.31
  4. Step 4: Simplify right side
    18,629.09x = 347,318,556.76
  5. Step 5: Solve for x
    x = 347,318,556.76/18,629.09
  6. Step 6: Final answer
    x = 18,643.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.