Home / 18,399.20-25,396.26-12,026.72

Finding the Fourth Proportional to 18,399.20, 25,396.26 and 12,026.72

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Solution

The fourth proportional to 18,399.20, 25,396.26 and 12,026.72 is: 16,600.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,399.20 : 25,396.26 = 12,026.72 : x
  2. Step 2: Convert to fraction form
    18,399.20/25,396.26 = 12,026.72/x
  3. Step 3: Cross multiply
    18,399.20x = 25,396.26 × 12,026.72
  4. Step 4: Simplify right side
    18,399.20x = 305,433,708.07
  5. Step 5: Solve for x
    x = 305,433,708.07/18,399.20
  6. Step 6: Final answer
    x = 16,600.38

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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.