Home / 18,975.96-28,468.56-8,584.92

Finding the Fourth Proportional to 18,975.96, 28,468.56 and 8,584.92

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Solution

The fourth proportional to 18,975.96, 28,468.56 and 8,584.92 is: 12,879.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,975.96 : 28,468.56 = 8,584.92 : x
  2. Step 2: Convert to fraction form
    18,975.96/28,468.56 = 8,584.92/x
  3. Step 3: Cross multiply
    18,975.96x = 28,468.56 × 8,584.92
  4. Step 4: Simplify right side
    18,975.96x = 244,400,310.12
  5. Step 5: Solve for x
    x = 244,400,310.12/18,975.96
  6. Step 6: Final answer
    x = 12,879.47

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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.