Home / 18,993.24-28,474.26-12,336.60

Finding the Fourth Proportional to 18,993.24, 28,474.26 and 12,336.60

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Solution

The fourth proportional to 18,993.24, 28,474.26 and 12,336.60 is: 18,494.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,993.24 : 28,474.26 = 12,336.60 : x
  2. Step 2: Convert to fraction form
    18,993.24/28,474.26 = 12,336.60/x
  3. Step 3: Cross multiply
    18,993.24x = 28,474.26 × 12,336.60
  4. Step 4: Simplify right side
    18,993.24x = 351,275,555.92
  5. Step 5: Solve for x
    x = 351,275,555.92/18,993.24
  6. Step 6: Final answer
    x = 18,494.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.