Home / 8,262.75-12,389.84-3,331.05

Finding the Fourth Proportional to 8,262.75, 12,389.84 and 3,331.05

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Solution

The fourth proportional to 8,262.75, 12,389.84 and 3,331.05 is: 4,994.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,262.75 : 12,389.84 = 3,331.05 : x
  2. Step 2: Convert to fraction form
    8,262.75/12,389.84 = 3,331.05/x
  3. Step 3: Cross multiply
    8,262.75x = 12,389.84 × 3,331.05
  4. Step 4: Simplify right side
    8,262.75x = 41,271,122.91
  5. Step 5: Solve for x
    x = 41,271,122.91/8,262.75
  6. Step 6: Final answer
    x = 4,994.84

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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.