Home / 12,379.07-18,571.68-6,142.03

Finding the Fourth Proportional to 12,379.07, 18,571.68 and 6,142.03

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Solution

The fourth proportional to 12,379.07, 18,571.68 and 6,142.03 is: 9,214.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379.07 : 18,571.68 = 6,142.03 : x
  2. Step 2: Convert to fraction form
    12,379.07/18,571.68 = 6,142.03/x
  3. Step 3: Cross multiply
    12,379.07x = 18,571.68 × 6,142.03
  4. Step 4: Simplify right side
    12,379.07x = 114,067,769.28
  5. Step 5: Solve for x
    x = 114,067,769.28/12,379.07
  6. Step 6: Final answer
    x = 9,214.57

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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.