Home / 12,399.08-18,599.32-3,966.32

Finding the Fourth Proportional to 12,399.08, 18,599.32 and 3,966.32

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Solution

The fourth proportional to 12,399.08, 18,599.32 and 3,966.32 is: 5,949.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,399.08 : 18,599.32 = 3,966.32 : x
  2. Step 2: Convert to fraction form
    12,399.08/18,599.32 = 3,966.32/x
  3. Step 3: Cross multiply
    12,399.08x = 18,599.32 × 3,966.32
  4. Step 4: Simplify right side
    12,399.08x = 73,770,911.32
  5. Step 5: Solve for x
    x = 73,770,911.32/12,399.08
  6. Step 6: Final answer
    x = 5,949.71

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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.