Home / 12,544.54-18,810.09-4,221.79

Finding the Fourth Proportional to 12,544.54, 18,810.09 and 4,221.79

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Solution

The fourth proportional to 12,544.54, 18,810.09 and 4,221.79 is: 6,330.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,544.54 : 18,810.09 = 4,221.79 : x
  2. Step 2: Convert to fraction form
    12,544.54/18,810.09 = 4,221.79/x
  3. Step 3: Cross multiply
    12,544.54x = 18,810.09 × 4,221.79
  4. Step 4: Simplify right side
    12,544.54x = 79,412,249.86
  5. Step 5: Solve for x
    x = 79,412,249.86/12,544.54
  6. Step 6: Final answer
    x = 6,330.42

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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.