Home / 14,509.96-21,728.18-12,163.79

Finding the Fourth Proportional to 14,509.96, 21,728.18 and 12,163.79

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Solution

The fourth proportional to 14,509.96, 21,728.18 and 12,163.79 is: 18,214.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,509.96 : 21,728.18 = 12,163.79 : x
  2. Step 2: Convert to fraction form
    14,509.96/21,728.18 = 12,163.79/x
  3. Step 3: Cross multiply
    14,509.96x = 21,728.18 × 12,163.79
  4. Step 4: Simplify right side
    14,509.96x = 264,297,103.33
  5. Step 5: Solve for x
    x = 264,297,103.33/14,509.96
  6. Step 6: Final answer
    x = 18,214.88

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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.