Home / 18,450.09-25,469.37-12,499.83

Finding the Fourth Proportional to 18,450.09, 25,469.37 and 12,499.83

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Solution

The fourth proportional to 18,450.09, 25,469.37 and 12,499.83 is: 17,255.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,450.09 : 25,469.37 = 12,499.83 : x
  2. Step 2: Convert to fraction form
    18,450.09/25,469.37 = 12,499.83/x
  3. Step 3: Cross multiply
    18,450.09x = 25,469.37 × 12,499.83
  4. Step 4: Simplify right side
    18,450.09x = 318,362,795.21
  5. Step 5: Solve for x
    x = 318,362,795.21/18,450.09
  6. Step 6: Final answer
    x = 17,255.35

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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.