Home / 18,399.08-27,513.84-13,664.18

Finding the Fourth Proportional to 18,399.08, 27,513.84 and 13,664.18

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Solution

The fourth proportional to 18,399.08, 27,513.84 and 13,664.18 is: 20,433.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,399.08 : 27,513.84 = 13,664.18 : x
  2. Step 2: Convert to fraction form
    18,399.08/27,513.84 = 13,664.18/x
  3. Step 3: Cross multiply
    18,399.08x = 27,513.84 × 13,664.18
  4. Step 4: Simplify right side
    18,399.08x = 375,954,062.25
  5. Step 5: Solve for x
    x = 375,954,062.25/18,399.08
  6. Step 6: Final answer
    x = 20,433.31

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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.