Home / 8,078.88-11,148.77-4,542.09

Finding the Fourth Proportional to 8,078.88, 11,148.77 and 4,542.09

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Solution

The fourth proportional to 8,078.88, 11,148.77 and 4,542.09 is: 6,268.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.88 : 11,148.77 = 4,542.09 : x
  2. Step 2: Convert to fraction form
    8,078.88/11,148.77 = 4,542.09/x
  3. Step 3: Cross multiply
    8,078.88x = 11,148.77 × 4,542.09
  4. Step 4: Simplify right side
    8,078.88x = 50,638,694.02
  5. Step 5: Solve for x
    x = 50,638,694.02/8,078.88
  6. Step 6: Final answer
    x = 6,268.03

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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.