Home / 8,852.21-12,213.83-5,620.85

Finding the Fourth Proportional to 8,852.21, 12,213.83 and 5,620.85

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Solution

The fourth proportional to 8,852.21, 12,213.83 and 5,620.85 is: 7,755.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,852.21 : 12,213.83 = 5,620.85 : x
  2. Step 2: Convert to fraction form
    8,852.21/12,213.83 = 5,620.85/x
  3. Step 3: Cross multiply
    8,852.21x = 12,213.83 × 5,620.85
  4. Step 4: Simplify right side
    8,852.21x = 68,652,059.34
  5. Step 5: Solve for x
    x = 68,652,059.34/8,852.21
  6. Step 6: Final answer
    x = 7,755.36

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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.