Home / 11,816.09-17,727.20-4,421.12

Finding the Fourth Proportional to 11,816.09, 17,727.20 and 4,421.12

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Solution

The fourth proportional to 11,816.09, 17,727.20 and 4,421.12 is: 6,632.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.09 : 17,727.20 = 4,421.12 : x
  2. Step 2: Convert to fraction form
    11,816.09/17,727.20 = 4,421.12/x
  3. Step 3: Cross multiply
    11,816.09x = 17,727.20 × 4,421.12
  4. Step 4: Simplify right side
    11,816.09x = 78,374,078.46
  5. Step 5: Solve for x
    x = 78,374,078.46/11,816.09
  6. Step 6: Final answer
    x = 6,632.83

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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.