Home / 9,072.12-13,609.52-4,912.70

Finding the Fourth Proportional to 9,072.12, 13,609.52 and 4,912.70

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Solution

The fourth proportional to 9,072.12, 13,609.52 and 4,912.70 is: 7,369.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,072.12 : 13,609.52 = 4,912.70 : x
  2. Step 2: Convert to fraction form
    9,072.12/13,609.52 = 4,912.70/x
  3. Step 3: Cross multiply
    9,072.12x = 13,609.52 × 4,912.70
  4. Step 4: Simplify right side
    9,072.12x = 66,859,488.90
  5. Step 5: Solve for x
    x = 66,859,488.90/9,072.12
  6. Step 6: Final answer
    x = 7,369.78

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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.