Home / 19,286.37-28,924.53-8,187.33

Finding the Fourth Proportional to 19,286.37, 28,924.53 and 8,187.33

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Solution

The fourth proportional to 19,286.37, 28,924.53 and 8,187.33 is: 12,278.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,286.37 : 28,924.53 = 8,187.33 : x
  2. Step 2: Convert to fraction form
    19,286.37/28,924.53 = 8,187.33/x
  3. Step 3: Cross multiply
    19,286.37x = 28,924.53 × 8,187.33
  4. Step 4: Simplify right side
    19,286.37x = 236,814,672.20
  5. Step 5: Solve for x
    x = 236,814,672.20/19,286.37
  6. Step 6: Final answer
    x = 12,278.86

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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.