Home / 14,121.29-21,183.77-4,261.56

Finding the Fourth Proportional to 14,121.29, 21,183.77 and 4,261.56

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Solution

The fourth proportional to 14,121.29, 21,183.77 and 4,261.56 is: 6,392.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.29 : 21,183.77 = 4,261.56 : x
  2. Step 2: Convert to fraction form
    14,121.29/21,183.77 = 4,261.56/x
  3. Step 3: Cross multiply
    14,121.29x = 21,183.77 × 4,261.56
  4. Step 4: Simplify right side
    14,121.29x = 90,275,885.57
  5. Step 5: Solve for x
    x = 90,275,885.57/14,121.29
  6. Step 6: Final answer
    x = 6,392.89

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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.