Home / 12,015.06-18,025.08-4,118.16

Finding the Fourth Proportional to 12,015.06, 18,025.08 and 4,118.16

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Solution

The fourth proportional to 12,015.06, 18,025.08 and 4,118.16 is: 6,178.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.06 : 18,025.08 = 4,118.16 : x
  2. Step 2: Convert to fraction form
    12,015.06/18,025.08 = 4,118.16/x
  3. Step 3: Cross multiply
    12,015.06x = 18,025.08 × 4,118.16
  4. Step 4: Simplify right side
    12,015.06x = 74,230,163.45
  5. Step 5: Solve for x
    x = 74,230,163.45/12,015.06
  6. Step 6: Final answer
    x = 6,178.09

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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.