Home / 18,857.44-28,289.22-6,378.23

Finding the Fourth Proportional to 18,857.44, 28,289.22 and 6,378.23

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Solution

The fourth proportional to 18,857.44, 28,289.22 and 6,378.23 is: 9,568.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857.44 : 28,289.22 = 6,378.23 : x
  2. Step 2: Convert to fraction form
    18,857.44/28,289.22 = 6,378.23/x
  3. Step 3: Cross multiply
    18,857.44x = 28,289.22 × 6,378.23
  4. Step 4: Simplify right side
    18,857.44x = 180,435,151.68
  5. Step 5: Solve for x
    x = 180,435,151.68/18,857.44
  6. Step 6: Final answer
    x = 9,568.38

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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.