Home / 11,877.87-16,390.44-6,571.38

Finding the Fourth Proportional to 11,877.87, 16,390.44 and 6,571.38

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Solution

The fourth proportional to 11,877.87, 16,390.44 and 6,571.38 is: 9,067.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,877.87 : 16,390.44 = 6,571.38 : x
  2. Step 2: Convert to fraction form
    11,877.87/16,390.44 = 6,571.38/x
  3. Step 3: Cross multiply
    11,877.87x = 16,390.44 × 6,571.38
  4. Step 4: Simplify right side
    11,877.87x = 107,707,809.61
  5. Step 5: Solve for x
    x = 107,707,809.61/11,877.87
  6. Step 6: Final answer
    x = 9,067.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.