Home / 7,458.38-11,187.39-3,072.80

Finding the Fourth Proportional to 7,458.38, 11,187.39 and 3,072.80

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Solution

The fourth proportional to 7,458.38, 11,187.39 and 3,072.80 is: 4,609.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,458.38 : 11,187.39 = 3,072.80 : x
  2. Step 2: Convert to fraction form
    7,458.38/11,187.39 = 3,072.80/x
  3. Step 3: Cross multiply
    7,458.38x = 11,187.39 × 3,072.80
  4. Step 4: Simplify right side
    7,458.38x = 34,376,611.99
  5. Step 5: Solve for x
    x = 34,376,611.99/7,458.38
  6. Step 6: Final answer
    x = 4,609.13

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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.