Home / 18,910.93-28,367.70-6,425.86

Finding the Fourth Proportional to 18,910.93, 28,367.70 and 6,425.86

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Solution

The fourth proportional to 18,910.93, 28,367.70 and 6,425.86 is: 9,639.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,910.93 : 28,367.70 = 6,425.86 : x
  2. Step 2: Convert to fraction form
    18,910.93/28,367.70 = 6,425.86/x
  3. Step 3: Cross multiply
    18,910.93x = 28,367.70 × 6,425.86
  4. Step 4: Simplify right side
    18,910.93x = 182,286,868.72
  5. Step 5: Solve for x
    x = 182,286,868.72/18,910.93
  6. Step 6: Final answer
    x = 9,639.23

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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.