Home / 12,015.36-18,014.64-4,515.84

Finding the Fourth Proportional to 12,015.36, 18,014.64 and 4,515.84

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Solution

The fourth proportional to 12,015.36, 18,014.64 and 4,515.84 is: 6,770.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.36 : 18,014.64 = 4,515.84 : x
  2. Step 2: Convert to fraction form
    12,015.36/18,014.64 = 4,515.84/x
  3. Step 3: Cross multiply
    12,015.36x = 18,014.64 × 4,515.84
  4. Step 4: Simplify right side
    12,015.36x = 81,351,231.90
  5. Step 5: Solve for x
    x = 81,351,231.90/12,015.36
  6. Step 6: Final answer
    x = 6,770.60

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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.