Home / 12,015.68-18,025.25-3,696.39

Finding the Fourth Proportional to 12,015.68, 18,025.25 and 3,696.39

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Solution

The fourth proportional to 12,015.68, 18,025.25 and 3,696.39 is: 5,545.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.68 : 18,025.25 = 3,696.39 : x
  2. Step 2: Convert to fraction form
    12,015.68/18,025.25 = 3,696.39/x
  3. Step 3: Cross multiply
    12,015.68x = 18,025.25 × 3,696.39
  4. Step 4: Simplify right side
    12,015.68x = 66,628,335.37
  5. Step 5: Solve for x
    x = 66,628,335.37/12,015.68
  6. Step 6: Final answer
    x = 5,545.12

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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.