Home / 12,183.96-16,814.07-7,151.79

Finding the Fourth Proportional to 12,183.96, 16,814.07 and 7,151.79

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Solution

The fourth proportional to 12,183.96, 16,814.07 and 7,151.79 is: 9,869.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.96 : 16,814.07 = 7,151.79 : x
  2. Step 2: Convert to fraction form
    12,183.96/16,814.07 = 7,151.79/x
  3. Step 3: Cross multiply
    12,183.96x = 16,814.07 × 7,151.79
  4. Step 4: Simplify right side
    12,183.96x = 120,250,697.69
  5. Step 5: Solve for x
    x = 120,250,697.69/12,183.96
  6. Step 6: Final answer
    x = 9,869.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.