Home / 7,930.69-11,896.59-3,186.85

Finding the Fourth Proportional to 7,930.69, 11,896.59 and 3,186.85

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Solution

The fourth proportional to 7,930.69, 11,896.59 and 3,186.85 is: 4,780.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,930.69 : 11,896.59 = 3,186.85 : x
  2. Step 2: Convert to fraction form
    7,930.69/11,896.59 = 3,186.85/x
  3. Step 3: Cross multiply
    7,930.69x = 11,896.59 × 3,186.85
  4. Step 4: Simplify right side
    7,930.69x = 37,912,647.84
  5. Step 5: Solve for x
    x = 37,912,647.84/7,930.69
  6. Step 6: Final answer
    x = 4,780.50

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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.