Home / 18,219.20-25,141.97-10,261.49

Finding the Fourth Proportional to 18,219.20, 25,141.97 and 10,261.49

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Solution

The fourth proportional to 18,219.20, 25,141.97 and 10,261.49 is: 14,160.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.20 : 25,141.97 = 10,261.49 : x
  2. Step 2: Convert to fraction form
    18,219.20/25,141.97 = 10,261.49/x
  3. Step 3: Cross multiply
    18,219.20x = 25,141.97 × 10,261.49
  4. Step 4: Simplify right side
    18,219.20x = 257,993,973.68
  5. Step 5: Solve for x
    x = 257,993,973.68/18,219.20
  6. Step 6: Final answer
    x = 14,160.56

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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.