Home / 9,121.20-13,685.04-6,226.80

Finding the Fourth Proportional to 9,121.20, 13,685.04 and 6,226.80

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Solution

The fourth proportional to 9,121.20, 13,685.04 and 6,226.80 is: 9,342.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.20 : 13,685.04 = 6,226.80 : x
  2. Step 2: Convert to fraction form
    9,121.20/13,685.04 = 6,226.80/x
  3. Step 3: Cross multiply
    9,121.20x = 13,685.04 × 6,226.80
  4. Step 4: Simplify right side
    9,121.20x = 85,214,007.07
  5. Step 5: Solve for x
    x = 85,214,007.07/9,121.20
  6. Step 6: Final answer
    x = 9,342.41

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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.