Home / 18,450.36-25,453.74-12,864.60

Finding the Fourth Proportional to 18,450.36, 25,453.74 and 12,864.60

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Solution

The fourth proportional to 18,450.36, 25,453.74 and 12,864.60 is: 17,747.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,450.36 : 25,453.74 = 12,864.60 : x
  2. Step 2: Convert to fraction form
    18,450.36/25,453.74 = 12,864.60/x
  3. Step 3: Cross multiply
    18,450.36x = 25,453.74 × 12,864.60
  4. Step 4: Simplify right side
    18,450.36x = 327,452,183.60
  5. Step 5: Solve for x
    x = 327,452,183.60/18,450.36
  6. Step 6: Final answer
    x = 17,747.74

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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.