Home / 7,986.21-11,021.07-4,629.27

Finding the Fourth Proportional to 7,986.21, 11,021.07 and 4,629.27

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Solution

The fourth proportional to 7,986.21, 11,021.07 and 4,629.27 is: 6,388.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.21 : 11,021.07 = 4,629.27 : x
  2. Step 2: Convert to fraction form
    7,986.21/11,021.07 = 4,629.27/x
  3. Step 3: Cross multiply
    7,986.21x = 11,021.07 × 4,629.27
  4. Step 4: Simplify right side
    7,986.21x = 51,019,508.72
  5. Step 5: Solve for x
    x = 51,019,508.72/7,986.21
  6. Step 6: Final answer
    x = 6,388.45

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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.