Home / 7,485.52-11,218.68-4,198.48

Finding the Fourth Proportional to 7,485.52, 11,218.68 and 4,198.48

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Solution

The fourth proportional to 7,485.52, 11,218.68 and 4,198.48 is: 6,292.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.52 : 11,218.68 = 4,198.48 : x
  2. Step 2: Convert to fraction form
    7,485.52/11,218.68 = 4,198.48/x
  3. Step 3: Cross multiply
    7,485.52x = 11,218.68 × 4,198.48
  4. Step 4: Simplify right side
    7,485.52x = 47,101,403.61
  5. Step 5: Solve for x
    x = 47,101,403.61/7,485.52
  6. Step 6: Final answer
    x = 6,292.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.