Home / 7,747.70-11,621.55-4,284.95

Finding the Fourth Proportional to 7,747.70, 11,621.55 and 4,284.95

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Solution

The fourth proportional to 7,747.70, 11,621.55 and 4,284.95 is: 6,427.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.70 : 11,621.55 = 4,284.95 : x
  2. Step 2: Convert to fraction form
    7,747.70/11,621.55 = 4,284.95/x
  3. Step 3: Cross multiply
    7,747.70x = 11,621.55 × 4,284.95
  4. Step 4: Simplify right side
    7,747.70x = 49,797,702.56
  5. Step 5: Solve for x
    x = 49,797,702.56/7,747.70
  6. Step 6: Final answer
    x = 6,427.42

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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.