Home / 6,823.20-9,418.64-5,255.85

Finding the Fourth Proportional to 6,823.20, 9,418.64 and 5,255.85

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Solution

The fourth proportional to 6,823.20, 9,418.64 and 5,255.85 is: 7,255.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,823.20 : 9,418.64 = 5,255.85 : x
  2. Step 2: Convert to fraction form
    6,823.20/9,418.64 = 5,255.85/x
  3. Step 3: Cross multiply
    6,823.20x = 9,418.64 × 5,255.85
  4. Step 4: Simplify right side
    6,823.20x = 49,502,968.08
  5. Step 5: Solve for x
    x = 49,502,968.08/6,823.20
  6. Step 6: Final answer
    x = 7,255.09

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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.