Home / 11,146.95-16,708.63-4,122.45

Finding the Fourth Proportional to 11,146.95, 16,708.63 and 4,122.45

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Solution

The fourth proportional to 11,146.95, 16,708.63 and 4,122.45 is: 6,179.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,146.95 : 16,708.63 = 4,122.45 : x
  2. Step 2: Convert to fraction form
    11,146.95/16,708.63 = 4,122.45/x
  3. Step 3: Cross multiply
    11,146.95x = 16,708.63 × 4,122.45
  4. Step 4: Simplify right side
    11,146.95x = 68,880,469.43
  5. Step 5: Solve for x
    x = 68,880,469.43/11,146.95
  6. Step 6: Final answer
    x = 6,179.31

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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.