Home / 18,405.36-27,608.48-6,718.56

Finding the Fourth Proportional to 18,405.36, 27,608.48 and 6,718.56

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Solution

The fourth proportional to 18,405.36, 27,608.48 and 6,718.56 is: 10,078.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405.36 : 27,608.48 = 6,718.56 : x
  2. Step 2: Convert to fraction form
    18,405.36/27,608.48 = 6,718.56/x
  3. Step 3: Cross multiply
    18,405.36x = 27,608.48 × 6,718.56
  4. Step 4: Simplify right side
    18,405.36x = 185,489,229.39
  5. Step 5: Solve for x
    x = 185,489,229.39/18,405.36
  6. Step 6: Final answer
    x = 10,078.00

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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.