Home / 13,683.63-18,845.64-11,794.51

Finding the Fourth Proportional to 13,683.63, 18,845.64 and 11,794.51

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Solution

The fourth proportional to 13,683.63, 18,845.64 and 11,794.51 is: 16,243.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,683.63 : 18,845.64 = 11,794.51 : x
  2. Step 2: Convert to fraction form
    13,683.63/18,845.64 = 11,794.51/x
  3. Step 3: Cross multiply
    13,683.63x = 18,845.64 × 11,794.51
  4. Step 4: Simplify right side
    13,683.63x = 222,275,089.44
  5. Step 5: Solve for x
    x = 222,275,089.44/13,683.63
  6. Step 6: Final answer
    x = 16,243.87

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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.