Home / 7,786.16-11,684.04-4,091.36

Finding the Fourth Proportional to 7,786.16, 11,684.04 and 4,091.36

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Solution

The fourth proportional to 7,786.16, 11,684.04 and 4,091.36 is: 6,139.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.16 : 11,684.04 = 4,091.36 : x
  2. Step 2: Convert to fraction form
    7,786.16/11,684.04 = 4,091.36/x
  3. Step 3: Cross multiply
    7,786.16x = 11,684.04 × 4,091.36
  4. Step 4: Simplify right side
    7,786.16x = 47,803,613.89
  5. Step 5: Solve for x
    x = 47,803,613.89/7,786.16
  6. Step 6: Final answer
    x = 6,139.56

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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.