Home / 13,723.31-18,928.43-11,618.33

Finding the Fourth Proportional to 13,723.31, 18,928.43 and 11,618.33

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Solution

The fourth proportional to 13,723.31, 18,928.43 and 11,618.33 is: 16,025.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.31 : 18,928.43 = 11,618.33 : x
  2. Step 2: Convert to fraction form
    13,723.31/18,928.43 = 11,618.33/x
  3. Step 3: Cross multiply
    13,723.31x = 18,928.43 × 11,618.33
  4. Step 4: Simplify right side
    13,723.31x = 219,916,593.39
  5. Step 5: Solve for x
    x = 219,916,593.39/13,723.31
  6. Step 6: Final answer
    x = 16,025.05

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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.