Home / 8,922.08-12,311.48-4,942.20

Finding the Fourth Proportional to 8,922.08, 12,311.48 and 4,942.20

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Solution

The fourth proportional to 8,922.08, 12,311.48 and 4,942.20 is: 6,819.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.08 : 12,311.48 = 4,942.20 : x
  2. Step 2: Convert to fraction form
    8,922.08/12,311.48 = 4,942.20/x
  3. Step 3: Cross multiply
    8,922.08x = 12,311.48 × 4,942.20
  4. Step 4: Simplify right side
    8,922.08x = 60,845,771.75
  5. Step 5: Solve for x
    x = 60,845,771.75/8,922.08
  6. Step 6: Final answer
    x = 6,819.68

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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.