Home / 14,243.52-21,361.77-6,450.78

Finding the Fourth Proportional to 14,243.52, 21,361.77 and 6,450.78

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Solution

The fourth proportional to 14,243.52, 21,361.77 and 6,450.78 is: 9,674.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,243.52 : 21,361.77 = 6,450.78 : x
  2. Step 2: Convert to fraction form
    14,243.52/21,361.77 = 6,450.78/x
  3. Step 3: Cross multiply
    14,243.52x = 21,361.77 × 6,450.78
  4. Step 4: Simplify right side
    14,243.52x = 137,800,078.68
  5. Step 5: Solve for x
    x = 137,800,078.68/14,243.52
  6. Step 6: Final answer
    x = 9,674.58

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1.5x scale

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.