Home / 11,455.07-17,149.80-7,042.80

Finding the Fourth Proportional to 11,455.07, 17,149.80 and 7,042.80

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Solution

The fourth proportional to 11,455.07, 17,149.80 and 7,042.80 is: 10,544.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.07 : 17,149.80 = 7,042.80 : x
  2. Step 2: Convert to fraction form
    11,455.07/17,149.80 = 7,042.80/x
  3. Step 3: Cross multiply
    11,455.07x = 17,149.80 × 7,042.80
  4. Step 4: Simplify right side
    11,455.07x = 120,782,611.44
  5. Step 5: Solve for x
    x = 120,782,611.44/11,455.07
  6. Step 6: Final answer
    x = 10,544.03

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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.