Home / 9,268.20-12,786.96-5,286.45

Finding the Fourth Proportional to 9,268.20, 12,786.96 and 5,286.45

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Solution

The fourth proportional to 9,268.20, 12,786.96 and 5,286.45 is: 7,293.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,268.20 : 12,786.96 = 5,286.45 : x
  2. Step 2: Convert to fraction form
    9,268.20/12,786.96 = 5,286.45/x
  3. Step 3: Cross multiply
    9,268.20x = 12,786.96 × 5,286.45
  4. Step 4: Simplify right side
    9,268.20x = 67,597,624.69
  5. Step 5: Solve for x
    x = 67,597,624.69/9,268.20
  6. Step 6: Final answer
    x = 7,293.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.