Home / 8,222.99-12,339.50-3,840.75

Finding the Fourth Proportional to 8,222.99, 12,339.50 and 3,840.75

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Solution

The fourth proportional to 8,222.99, 12,339.50 and 3,840.75 is: 5,763.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,222.99 : 12,339.50 = 3,840.75 : x
  2. Step 2: Convert to fraction form
    8,222.99/12,339.50 = 3,840.75/x
  3. Step 3: Cross multiply
    8,222.99x = 12,339.50 × 3,840.75
  4. Step 4: Simplify right side
    8,222.99x = 47,392,915.42
  5. Step 5: Solve for x
    x = 47,392,915.42/8,222.99
  6. Step 6: Final answer
    x = 5,763.47

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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.