Home / 18,711.43-28,072.46-6,239.61

Finding the Fourth Proportional to 18,711.43, 28,072.46 and 6,239.61

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Solution

The fourth proportional to 18,711.43, 28,072.46 and 6,239.61 is: 9,361.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.43 : 28,072.46 = 6,239.61 : x
  2. Step 2: Convert to fraction form
    18,711.43/28,072.46 = 6,239.61/x
  3. Step 3: Cross multiply
    18,711.43x = 28,072.46 × 6,239.61
  4. Step 4: Simplify right side
    18,711.43x = 175,161,217.74
  5. Step 5: Solve for x
    x = 175,161,217.74/18,711.43
  6. Step 6: Final answer
    x = 9,361.19

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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.