Home / 12,015.58-18,016.26-4,115.32

Finding the Fourth Proportional to 12,015.58, 18,016.26 and 4,115.32

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Solution

The fourth proportional to 12,015.58, 18,016.26 and 4,115.32 is: 6,170.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.58 : 18,016.26 = 4,115.32 : x
  2. Step 2: Convert to fraction form
    12,015.58/18,016.26 = 4,115.32/x
  3. Step 3: Cross multiply
    12,015.58x = 18,016.26 × 4,115.32
  4. Step 4: Simplify right side
    12,015.58x = 74,142,675.10
  5. Step 5: Solve for x
    x = 74,142,675.10/12,015.58
  6. Step 6: Final answer
    x = 6,170.54

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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.