Home / 11,119.07-16,679.48-3,221.71

Finding the Fourth Proportional to 11,119.07, 16,679.48 and 3,221.71

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Solution

The fourth proportional to 11,119.07, 16,679.48 and 3,221.71 is: 4,832.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,119.07 : 16,679.48 = 3,221.71 : x
  2. Step 2: Convert to fraction form
    11,119.07/16,679.48 = 3,221.71/x
  3. Step 3: Cross multiply
    11,119.07x = 16,679.48 × 3,221.71
  4. Step 4: Simplify right side
    11,119.07x = 53,736,389.70
  5. Step 5: Solve for x
    x = 53,736,389.70/11,119.07
  6. Step 6: Final answer
    x = 4,832.81

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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.