Home / 12,286.26-18,433.08-5,716.35

Finding the Fourth Proportional to 12,286.26, 18,433.08 and 5,716.35

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Solution

The fourth proportional to 12,286.26, 18,433.08 and 5,716.35 is: 8,576.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286.26 : 18,433.08 = 5,716.35 : x
  2. Step 2: Convert to fraction form
    12,286.26/18,433.08 = 5,716.35/x
  3. Step 3: Cross multiply
    12,286.26x = 18,433.08 × 5,716.35
  4. Step 4: Simplify right side
    12,286.26x = 105,369,936.86
  5. Step 5: Solve for x
    x = 105,369,936.86/12,286.26
  6. Step 6: Final answer
    x = 8,576.24

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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.