Home / 14,147.42-21,226.60-4,286.79

Finding the Fourth Proportional to 14,147.42, 21,226.60 and 4,286.79

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Solution

The fourth proportional to 14,147.42, 21,226.60 and 4,286.79 is: 6,431.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.42 : 21,226.60 = 4,286.79 : x
  2. Step 2: Convert to fraction form
    14,147.42/21,226.60 = 4,286.79/x
  3. Step 3: Cross multiply
    14,147.42x = 21,226.60 × 4,286.79
  4. Step 4: Simplify right side
    14,147.42x = 90,993,976.61
  5. Step 5: Solve for x
    x = 90,993,976.61/14,147.42
  6. Step 6: Final answer
    x = 6,431.84

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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.