Home / 11,727.15-16,183.45-6,421.97

Finding the Fourth Proportional to 11,727.15, 16,183.45 and 6,421.97

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Solution

The fourth proportional to 11,727.15, 16,183.45 and 6,421.97 is: 8,862.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,727.15 : 16,183.45 = 6,421.97 : x
  2. Step 2: Convert to fraction form
    11,727.15/16,183.45 = 6,421.97/x
  3. Step 3: Cross multiply
    11,727.15x = 16,183.45 × 6,421.97
  4. Step 4: Simplify right side
    11,727.15x = 103,929,678.88
  5. Step 5: Solve for x
    x = 103,929,678.88/11,727.15
  6. Step 6: Final answer
    x = 8,862.32

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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.