Home / 11,133.36-16,708.48-4,120

Finding the Fourth Proportional to 11,133.36, 16,708.48 and 4,120

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Solution

The fourth proportional to 11,133.36, 16,708.48 and 4,120 is: 6,183.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.36 : 16,708.48 = 4,120 : x
  2. Step 2: Convert to fraction form
    11,133.36/16,708.48 = 4,120/x
  3. Step 3: Cross multiply
    11,133.36x = 16,708.48 × 4,120
  4. Step 4: Simplify right side
    11,133.36x = 68,838,937.60
  5. Step 5: Solve for x
    x = 68,838,937.60/11,133.36
  6. Step 6: Final answer
    x = 6,183.12

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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.