Home / 18,860.94-28,290.51-5,714.33

Finding the Fourth Proportional to 18,860.94, 28,290.51 and 5,714.33

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Solution

The fourth proportional to 18,860.94, 28,290.51 and 5,714.33 is: 8,571.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,860.94 : 28,290.51 = 5,714.33 : x
  2. Step 2: Convert to fraction form
    18,860.94/28,290.51 = 5,714.33/x
  3. Step 3: Cross multiply
    18,860.94x = 28,290.51 × 5,714.33
  4. Step 4: Simplify right side
    18,860.94x = 161,661,168.56
  5. Step 5: Solve for x
    x = 161,661,168.56/18,860.94
  6. Step 6: Final answer
    x = 8,571.21

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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.