Home / 18,358.32-25,334.24-9,974.80

Finding the Fourth Proportional to 18,358.32, 25,334.24 and 9,974.80

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Solution

The fourth proportional to 18,358.32, 25,334.24 and 9,974.80 is: 13,765.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,358.32 : 25,334.24 = 9,974.80 : x
  2. Step 2: Convert to fraction form
    18,358.32/25,334.24 = 9,974.80/x
  3. Step 3: Cross multiply
    18,358.32x = 25,334.24 × 9,974.80
  4. Step 4: Simplify right side
    18,358.32x = 252,703,977.15
  5. Step 5: Solve for x
    x = 252,703,977.15/18,358.32
  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.