Home / 12,218.44-18,329.94-5,555.41

Finding the Fourth Proportional to 12,218.44, 18,329.94 and 5,555.41

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Solution

The fourth proportional to 12,218.44, 18,329.94 and 5,555.41 is: 8,334.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.44 : 18,329.94 = 5,555.41 : x
  2. Step 2: Convert to fraction form
    12,218.44/18,329.94 = 5,555.41/x
  3. Step 3: Cross multiply
    12,218.44x = 18,329.94 × 5,555.41
  4. Step 4: Simplify right side
    12,218.44x = 101,830,331.98
  5. Step 5: Solve for x
    x = 101,830,331.98/12,218.44
  6. Step 6: Final answer
    x = 8,334.15

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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.