Home / 8,351.21-12,529.16-3,355.13

Finding the Fourth Proportional to 8,351.21, 12,529.16 and 3,355.13

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Solution

The fourth proportional to 8,351.21, 12,529.16 and 3,355.13 is: 5,033.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,351.21 : 12,529.16 = 3,355.13 : x
  2. Step 2: Convert to fraction form
    8,351.21/12,529.16 = 3,355.13/x
  3. Step 3: Cross multiply
    8,351.21x = 12,529.16 × 3,355.13
  4. Step 4: Simplify right side
    8,351.21x = 42,037,000.30
  5. Step 5: Solve for x
    x = 42,037,000.30/8,351.21
  6. Step 6: Final answer
    x = 5,033.64

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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.