Home / 11,965.28-17,933.86-5,383.76

Finding the Fourth Proportional to 11,965.28, 17,933.86 and 5,383.76

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Solution

The fourth proportional to 11,965.28, 17,933.86 and 5,383.76 is: 8,069.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,965.28 : 17,933.86 = 5,383.76 : x
  2. Step 2: Convert to fraction form
    11,965.28/17,933.86 = 5,383.76/x
  3. Step 3: Cross multiply
    11,965.28x = 17,933.86 × 5,383.76
  4. Step 4: Simplify right side
    11,965.28x = 96,551,598.11
  5. Step 5: Solve for x
    x = 96,551,598.11/11,965.28
  6. Step 6: Final answer
    x = 8,069.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.