Home / 18,517.64-25,527.78-13,203.24

Finding the Fourth Proportional to 18,517.64, 25,527.78 and 13,203.24

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Solution

The fourth proportional to 18,517.64, 25,527.78 and 13,203.24 is: 18,201.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517.64 : 25,527.78 = 13,203.24 : x
  2. Step 2: Convert to fraction form
    18,517.64/25,527.78 = 13,203.24/x
  3. Step 3: Cross multiply
    18,517.64x = 25,527.78 × 13,203.24
  4. Step 4: Simplify right side
    18,517.64x = 337,049,406.01
  5. Step 5: Solve for x
    x = 337,049,406.01/18,517.64
  6. Step 6: Final answer
    x = 18,201.53

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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.