Home / 11,684.18-17,520.30-4,286.72

Finding the Fourth Proportional to 11,684.18, 17,520.30 and 4,286.72

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Solution

The fourth proportional to 11,684.18, 17,520.30 and 4,286.72 is: 6,427.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,684.18 : 17,520.30 = 4,286.72 : x
  2. Step 2: Convert to fraction form
    11,684.18/17,520.30 = 4,286.72/x
  3. Step 3: Cross multiply
    11,684.18x = 17,520.30 × 4,286.72
  4. Step 4: Simplify right side
    11,684.18x = 75,104,620.42
  5. Step 5: Solve for x
    x = 75,104,620.42/11,684.18
  6. Step 6: Final answer
    x = 6,427.89

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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.