Home / 12,418.99-18,630.33-4,099.88

Finding the Fourth Proportional to 12,418.99, 18,630.33 and 4,099.88

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Solution

The fourth proportional to 12,418.99, 18,630.33 and 4,099.88 is: 6,150.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,418.99 : 18,630.33 = 4,099.88 : x
  2. Step 2: Convert to fraction form
    12,418.99/18,630.33 = 4,099.88/x
  3. Step 3: Cross multiply
    12,418.99x = 18,630.33 × 4,099.88
  4. Step 4: Simplify right side
    12,418.99x = 76,382,148.56
  5. Step 5: Solve for x
    x = 76,382,148.56/12,418.99
  6. Step 6: Final answer
    x = 6,150.43

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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.