Home / 11,772.05-16,245.32-6,394.37

Finding the Fourth Proportional to 11,772.05, 16,245.32 and 6,394.37

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Solution

The fourth proportional to 11,772.05, 16,245.32 and 6,394.37 is: 8,824.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,772.05 : 16,245.32 = 6,394.37 : x
  2. Step 2: Convert to fraction form
    11,772.05/16,245.32 = 6,394.37/x
  3. Step 3: Cross multiply
    11,772.05x = 16,245.32 × 6,394.37
  4. Step 4: Simplify right side
    11,772.05x = 103,878,473.65
  5. Step 5: Solve for x
    x = 103,878,473.65/11,772.05
  6. Step 6: Final answer
    x = 8,824.17

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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.