Home / 18,818.43-28,229.60-6,339.84

Finding the Fourth Proportional to 18,818.43, 28,229.60 and 6,339.84

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Solution

The fourth proportional to 18,818.43, 28,229.60 and 6,339.84 is: 9,510.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.43 : 28,229.60 = 6,339.84 : x
  2. Step 2: Convert to fraction form
    18,818.43/28,229.60 = 6,339.84/x
  3. Step 3: Cross multiply
    18,818.43x = 28,229.60 × 6,339.84
  4. Step 4: Simplify right side
    18,818.43x = 178,971,115.56
  5. Step 5: Solve for x
    x = 178,971,115.56/18,818.43
  6. Step 6: Final answer
    x = 9,510.42

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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.