Home / 14,131.86-21,183.21-4,768.71

Finding the Fourth Proportional to 14,131.86, 21,183.21 and 4,768.71

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Solution

The fourth proportional to 14,131.86, 21,183.21 and 4,768.71 is: 7,148.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,131.86 : 21,183.21 = 4,768.71 : x
  2. Step 2: Convert to fraction form
    14,131.86/21,183.21 = 4,768.71/x
  3. Step 3: Cross multiply
    14,131.86x = 21,183.21 × 4,768.71
  4. Step 4: Simplify right side
    14,131.86x = 101,016,585.36
  5. Step 5: Solve for x
    x = 101,016,585.36/14,131.86
  6. Step 6: Final answer
    x = 7,148.15

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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.