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Finding the Fourth Proportional to 11,119.66, 16,679.69 and 3,722.74

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Solution

The fourth proportional to 11,119.66, 16,679.69 and 3,722.74 is: 5,584.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,119.66 : 16,679.69 = 3,722.74 : x
  2. Step 2: Convert to fraction form
    11,119.66/16,679.69 = 3,722.74/x
  3. Step 3: Cross multiply
    11,119.66x = 16,679.69 × 3,722.74
  4. Step 4: Simplify right side
    11,119.66x = 62,094,149.15
  5. Step 5: Solve for x
    x = 62,094,149.15/11,119.66
  6. Step 6: Final answer
    x = 5,584.18

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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.