Home / 11,993.61-16,551.39-6,687.86

Finding the Fourth Proportional to 11,993.61, 16,551.39 and 6,687.86

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Solution

The fourth proportional to 11,993.61, 16,551.39 and 6,687.86 is: 9,229.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,993.61 : 16,551.39 = 6,687.86 : x
  2. Step 2: Convert to fraction form
    11,993.61/16,551.39 = 6,687.86/x
  3. Step 3: Cross multiply
    11,993.61x = 16,551.39 × 6,687.86
  4. Step 4: Simplify right side
    11,993.61x = 110,693,296.37
  5. Step 5: Solve for x
    x = 110,693,296.37/11,993.61
  6. Step 6: Final answer
    x = 9,229.36

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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.