Home / 7,449.25-11,156.87-3,556.39

Finding the Fourth Proportional to 7,449.25, 11,156.87 and 3,556.39

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Solution

The fourth proportional to 7,449.25, 11,156.87 and 3,556.39 is: 5,326.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,449.25 : 11,156.87 = 3,556.39 : x
  2. Step 2: Convert to fraction form
    7,449.25/11,156.87 = 3,556.39/x
  3. Step 3: Cross multiply
    7,449.25x = 11,156.87 × 3,556.39
  4. Step 4: Simplify right side
    7,449.25x = 39,678,180.90
  5. Step 5: Solve for x
    x = 39,678,180.90/7,449.25
  6. Step 6: Final answer
    x = 5,326.47

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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.