Home / 8,220.44-12,334.80-3,291.50

Finding the Fourth Proportional to 8,220.44, 12,334.80 and 3,291.50

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Solution

The fourth proportional to 8,220.44, 12,334.80 and 3,291.50 is: 4,938.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.44 : 12,334.80 = 3,291.50 : x
  2. Step 2: Convert to fraction form
    8,220.44/12,334.80 = 3,291.50/x
  3. Step 3: Cross multiply
    8,220.44x = 12,334.80 × 3,291.50
  4. Step 4: Simplify right side
    8,220.44x = 40,599,994.20
  5. Step 5: Solve for x
    x = 40,599,994.20/8,220.44
  6. Step 6: Final answer
    x = 4,938.91

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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.