Home / 11,166.05-15,409.92-7,382.64

Finding the Fourth Proportional to 11,166.05, 15,409.92 and 7,382.64

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Solution

The fourth proportional to 11,166.05, 15,409.92 and 7,382.64 is: 10,188.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,166.05 : 15,409.92 = 7,382.64 : x
  2. Step 2: Convert to fraction form
    11,166.05/15,409.92 = 7,382.64/x
  3. Step 3: Cross multiply
    11,166.05x = 15,409.92 × 7,382.64
  4. Step 4: Simplify right side
    11,166.05x = 113,765,891.79
  5. Step 5: Solve for x
    x = 113,765,891.79/11,166.05
  6. Step 6: Final answer
    x = 10,188.55

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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.