Home / 8,322.40-12,485.90-5,361.85

Finding the Fourth Proportional to 8,322.40, 12,485.90 and 5,361.85

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Solution

The fourth proportional to 8,322.40, 12,485.90 and 5,361.85 is: 8,044.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,322.40 : 12,485.90 = 5,361.85 : x
  2. Step 2: Convert to fraction form
    8,322.40/12,485.90 = 5,361.85/x
  3. Step 3: Cross multiply
    8,322.40x = 12,485.90 × 5,361.85
  4. Step 4: Simplify right side
    8,322.40x = 66,947,522.92
  5. Step 5: Solve for x
    x = 66,947,522.92/8,322.40
  6. Step 6: Final answer
    x = 8,044.26

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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.