Home / 12,344.15-18,518.31-4,021.80

Finding the Fourth Proportional to 12,344.15, 18,518.31 and 4,021.80

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Solution

The fourth proportional to 12,344.15, 18,518.31 and 4,021.80 is: 6,033.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,344.15 : 18,518.31 = 4,021.80 : x
  2. Step 2: Convert to fraction form
    12,344.15/18,518.31 = 4,021.80/x
  3. Step 3: Cross multiply
    12,344.15x = 18,518.31 × 4,021.80
  4. Step 4: Simplify right side
    12,344.15x = 74,476,939.16
  5. Step 5: Solve for x
    x = 74,476,939.16/12,344.15
  6. Step 6: Final answer
    x = 6,033.38

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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.