Home / 12,188.15-18,284.96-3,868.44

Finding the Fourth Proportional to 12,188.15, 18,284.96 and 3,868.44

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Solution

The fourth proportional to 12,188.15, 18,284.96 and 3,868.44 is: 5,803.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,188.15 : 18,284.96 = 3,868.44 : x
  2. Step 2: Convert to fraction form
    12,188.15/18,284.96 = 3,868.44/x
  3. Step 3: Cross multiply
    12,188.15x = 18,284.96 × 3,868.44
  4. Step 4: Simplify right side
    12,188.15x = 70,734,270.66
  5. Step 5: Solve for x
    x = 70,734,270.66/12,188.15
  6. Step 6: Final answer
    x = 5,803.53

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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.