Home / 7,173.37-9,900.48-4,189.56

Finding the Fourth Proportional to 7,173.37, 9,900.48 and 4,189.56

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Solution

The fourth proportional to 7,173.37, 9,900.48 and 4,189.56 is: 5,782.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,173.37 : 9,900.48 = 4,189.56 : x
  2. Step 2: Convert to fraction form
    7,173.37/9,900.48 = 4,189.56/x
  3. Step 3: Cross multiply
    7,173.37x = 9,900.48 × 4,189.56
  4. Step 4: Simplify right side
    7,173.37x = 41,478,654.99
  5. Step 5: Solve for x
    x = 41,478,654.99/7,173.37
  6. Step 6: Final answer
    x = 5,782.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.