Home / 8,078.62-11,149.61-4,542.06

Finding the Fourth Proportional to 8,078.62, 11,149.61 and 4,542.06

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Solution

The fourth proportional to 8,078.62, 11,149.61 and 4,542.06 is: 6,268.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.62 : 11,149.61 = 4,542.06 : x
  2. Step 2: Convert to fraction form
    8,078.62/11,149.61 = 4,542.06/x
  3. Step 3: Cross multiply
    8,078.62x = 11,149.61 × 4,542.06
  4. Step 4: Simplify right side
    8,078.62x = 50,642,197.60
  5. Step 5: Solve for x
    x = 50,642,197.60/8,078.62
  6. Step 6: Final answer
    x = 6,268.67

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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.