Home / 11,879.28-16,393.68-6,574.32

Finding the Fourth Proportional to 11,879.28, 16,393.68 and 6,574.32

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Solution

The fourth proportional to 11,879.28, 16,393.68 and 6,574.32 is: 9,072.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,879.28 : 16,393.68 = 6,574.32 : x
  2. Step 2: Convert to fraction form
    11,879.28/16,393.68 = 6,574.32/x
  3. Step 3: Cross multiply
    11,879.28x = 16,393.68 × 6,574.32
  4. Step 4: Simplify right side
    11,879.28x = 107,777,298.30
  5. Step 5: Solve for x
    x = 107,777,298.30/11,879.28
  6. Step 6: Final answer
    x = 9,072.71

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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.