Home / 11,772.31-16,245.96-6,394.77

Finding the Fourth Proportional to 11,772.31, 16,245.96 and 6,394.77

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Solution

The fourth proportional to 11,772.31, 16,245.96 and 6,394.77 is: 8,824.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,772.31 : 16,245.96 = 6,394.77 : x
  2. Step 2: Convert to fraction form
    11,772.31/16,245.96 = 6,394.77/x
  3. Step 3: Cross multiply
    11,772.31x = 16,245.96 × 6,394.77
  4. Step 4: Simplify right side
    11,772.31x = 103,889,177.63
  5. Step 5: Solve for x
    x = 103,889,177.63/11,772.31
  6. Step 6: Final answer
    x = 8,824.88

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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.