Home / 17,090.75-25,640.46-4,778.75

Finding the Fourth Proportional to 17,090.75, 25,640.46 and 4,778.75

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Solution

The fourth proportional to 17,090.75, 25,640.46 and 4,778.75 is: 7,169.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,090.75 : 25,640.46 = 4,778.75 : x
  2. Step 2: Convert to fraction form
    17,090.75/25,640.46 = 4,778.75/x
  3. Step 3: Cross multiply
    17,090.75x = 25,640.46 × 4,778.75
  4. Step 4: Simplify right side
    17,090.75x = 122,529,348.23
  5. Step 5: Solve for x
    x = 122,529,348.23/17,090.75
  6. Step 6: Final answer
    x = 7,169.34

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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.