Home / 7,675.25-11,515.58-3,782.39

Finding the Fourth Proportional to 7,675.25, 11,515.58 and 3,782.39

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Solution

The fourth proportional to 7,675.25, 11,515.58 and 3,782.39 is: 5,674.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,675.25 : 11,515.58 = 3,782.39 : x
  2. Step 2: Convert to fraction form
    7,675.25/11,515.58 = 3,782.39/x
  3. Step 3: Cross multiply
    7,675.25x = 11,515.58 × 3,782.39
  4. Step 4: Simplify right side
    7,675.25x = 43,556,395.72
  5. Step 5: Solve for x
    x = 43,556,395.72/7,675.25
  6. Step 6: Final answer
    x = 5,674.92

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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.