Home / 13,143.66-18,093.94-11,880.97

Finding the Fourth Proportional to 13,143.66, 18,093.94 and 11,880.97

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Solution

The fourth proportional to 13,143.66, 18,093.94 and 11,880.97 is: 16,355.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,143.66 : 18,093.94 = 11,880.97 : x
  2. Step 2: Convert to fraction form
    13,143.66/18,093.94 = 11,880.97/x
  3. Step 3: Cross multiply
    13,143.66x = 18,093.94 × 11,880.97
  4. Step 4: Simplify right side
    13,143.66x = 214,973,558.32
  5. Step 5: Solve for x
    x = 214,973,558.32/13,143.66
  6. Step 6: Final answer
    x = 16,355.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.