Home / 7,721.80-11,567.26-3,556.04

Finding the Fourth Proportional to 7,721.80, 11,567.26 and 3,556.04

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Solution

The fourth proportional to 7,721.80, 11,567.26 and 3,556.04 is: 5,326.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.80 : 11,567.26 = 3,556.04 : x
  2. Step 2: Convert to fraction form
    7,721.80/11,567.26 = 3,556.04/x
  3. Step 3: Cross multiply
    7,721.80x = 11,567.26 × 3,556.04
  4. Step 4: Simplify right side
    7,721.80x = 41,133,639.25
  5. Step 5: Solve for x
    x = 41,133,639.25/7,721.80
  6. Step 6: Final answer
    x = 5,326.95

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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.