Home / 6,629.40-9,147.42-4,112.12

Finding the Fourth Proportional to 6,629.40, 9,147.42 and 4,112.12

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Solution

The fourth proportional to 6,629.40, 9,147.42 and 4,112.12 is: 5,674.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,629.40 : 9,147.42 = 4,112.12 : x
  2. Step 2: Convert to fraction form
    6,629.40/9,147.42 = 4,112.12/x
  3. Step 3: Cross multiply
    6,629.40x = 9,147.42 × 4,112.12
  4. Step 4: Simplify right side
    6,629.40x = 37,615,288.73
  5. Step 5: Solve for x
    x = 37,615,288.73/6,629.40
  6. Step 6: Final answer
    x = 5,674.01

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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.