Home / 8,279.44-12,425.64-3,085.60

Finding the Fourth Proportional to 8,279.44, 12,425.64 and 3,085.60

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Solution

The fourth proportional to 8,279.44, 12,425.64 and 3,085.60 is: 4,630.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.44 : 12,425.64 = 3,085.60 : x
  2. Step 2: Convert to fraction form
    8,279.44/12,425.64 = 3,085.60/x
  3. Step 3: Cross multiply
    8,279.44x = 12,425.64 × 3,085.60
  4. Step 4: Simplify right side
    8,279.44x = 38,340,554.78
  5. Step 5: Solve for x
    x = 38,340,554.78/8,279.44
  6. Step 6: Final answer
    x = 4,630.81

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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.