Home / 8,078.87-11,148.80-4,542.10

Finding the Fourth Proportional to 8,078.87, 11,148.80 and 4,542.10

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Solution

The fourth proportional to 8,078.87, 11,148.80 and 4,542.10 is: 6,268.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.87 : 11,148.80 = 4,542.10 : x
  2. Step 2: Convert to fraction form
    8,078.87/11,148.80 = 4,542.10/x
  3. Step 3: Cross multiply
    8,078.87x = 11,148.80 × 4,542.10
  4. Step 4: Simplify right side
    8,078.87x = 50,638,913.90
  5. Step 5: Solve for x
    x = 50,638,913.90/8,078.87
  6. Step 6: Final answer
    x = 6,268.07

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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.