Home / 18,924.96-28,399.19-12,852.39

Finding the Fourth Proportional to 18,924.96, 28,399.19 and 12,852.39

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Solution

The fourth proportional to 18,924.96, 28,399.19 and 12,852.39 is: 19,286.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,924.96 : 28,399.19 = 12,852.39 : x
  2. Step 2: Convert to fraction form
    18,924.96/28,399.19 = 12,852.39/x
  3. Step 3: Cross multiply
    18,924.96x = 28,399.19 × 12,852.39
  4. Step 4: Simplify right side
    18,924.96x = 364,997,401.30
  5. Step 5: Solve for x
    x = 364,997,401.30/18,924.96
  6. Step 6: Final answer
    x = 19,286.56

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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.