Home / 12,144.15-18,213.80-4,351.14

Finding the Fourth Proportional to 12,144.15, 18,213.80 and 4,351.14

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Solution

The fourth proportional to 12,144.15, 18,213.80 and 4,351.14 is: 6,525.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,144.15 : 18,213.80 = 4,351.14 : x
  2. Step 2: Convert to fraction form
    12,144.15/18,213.80 = 4,351.14/x
  3. Step 3: Cross multiply
    12,144.15x = 18,213.80 × 4,351.14
  4. Step 4: Simplify right side
    12,144.15x = 79,250,771.98
  5. Step 5: Solve for x
    x = 79,250,771.98/12,144.15
  6. Step 6: Final answer
    x = 6,525.84

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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.