Home / 18,803.52-28,183.26-9,438.48

Finding the Fourth Proportional to 18,803.52, 28,183.26 and 9,438.48

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Solution

The fourth proportional to 18,803.52, 28,183.26 and 9,438.48 is: 14,146.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,803.52 : 28,183.26 = 9,438.48 : x
  2. Step 2: Convert to fraction form
    18,803.52/28,183.26 = 9,438.48/x
  3. Step 3: Cross multiply
    18,803.52x = 28,183.26 × 9,438.48
  4. Step 4: Simplify right side
    18,803.52x = 266,007,135.84
  5. Step 5: Solve for x
    x = 266,007,135.84/18,803.52
  6. Step 6: Final answer
    x = 14,146.67

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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.