Home / 11,143.37-16,721.74-4,122.19

Finding the Fourth Proportional to 11,143.37, 16,721.74 and 4,122.19

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Solution

The fourth proportional to 11,143.37, 16,721.74 and 4,122.19 is: 6,185.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,143.37 : 16,721.74 = 4,122.19 : x
  2. Step 2: Convert to fraction form
    11,143.37/16,721.74 = 4,122.19/x
  3. Step 3: Cross multiply
    11,143.37x = 16,721.74 × 4,122.19
  4. Step 4: Simplify right side
    11,143.37x = 68,930,215.47
  5. Step 5: Solve for x
    x = 68,930,215.47/11,143.37
  6. Step 6: Final answer
    x = 6,185.76

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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.