Home / 7,806.07-11,696.81-4,290.85

Finding the Fourth Proportional to 7,806.07, 11,696.81 and 4,290.85

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Solution

The fourth proportional to 7,806.07, 11,696.81 and 4,290.85 is: 6,429.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,806.07 : 11,696.81 = 4,290.85 : x
  2. Step 2: Convert to fraction form
    7,806.07/11,696.81 = 4,290.85/x
  3. Step 3: Cross multiply
    7,806.07x = 11,696.81 × 4,290.85
  4. Step 4: Simplify right side
    7,806.07x = 50,189,217.46
  5. Step 5: Solve for x
    x = 50,189,217.46/7,806.07
  6. Step 6: Final answer
    x = 6,429.51

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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.