Home / 18,358.13-25,334.42-9,974.63

Finding the Fourth Proportional to 18,358.13, 25,334.42 and 9,974.63

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Solution

The fourth proportional to 18,358.13, 25,334.42 and 9,974.63 is: 13,765.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,358.13 : 25,334.42 = 9,974.63 : x
  2. Step 2: Convert to fraction form
    18,358.13/25,334.42 = 9,974.63/x
  3. Step 3: Cross multiply
    18,358.13x = 25,334.42 × 9,974.63
  4. Step 4: Simplify right side
    18,358.13x = 252,701,289.22
  5. Step 5: Solve for x
    x = 252,701,289.22/18,358.13
  6. Step 6: Final answer
    x = 13,765.09

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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.