Home / 14,121.84-21,183.31-4,261.12

Finding the Fourth Proportional to 14,121.84, 21,183.31 and 4,261.12

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Solution

The fourth proportional to 14,121.84, 21,183.31 and 4,261.12 is: 6,391.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.84 : 21,183.31 = 4,261.12 : x
  2. Step 2: Convert to fraction form
    14,121.84/21,183.31 = 4,261.12/x
  3. Step 3: Cross multiply
    14,121.84x = 21,183.31 × 4,261.12
  4. Step 4: Simplify right side
    14,121.84x = 90,264,498.69
  5. Step 5: Solve for x
    x = 90,264,498.69/14,121.84
  6. Step 6: Final answer
    x = 6,391.84

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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.