Home / 11,727.05-16,183.58-6,421.75

Finding the Fourth Proportional to 11,727.05, 16,183.58 and 6,421.75

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Solution

The fourth proportional to 11,727.05, 16,183.58 and 6,421.75 is: 8,862.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,727.05 : 16,183.58 = 6,421.75 : x
  2. Step 2: Convert to fraction form
    11,727.05/16,183.58 = 6,421.75/x
  3. Step 3: Cross multiply
    11,727.05x = 16,183.58 × 6,421.75
  4. Step 4: Simplify right side
    11,727.05x = 103,926,832.30
  5. Step 5: Solve for x
    x = 103,926,832.30/11,727.05
  6. Step 6: Final answer
    x = 8,862.15

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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.