Home / 11,928.92-17,896.26-5,005.40

Finding the Fourth Proportional to 11,928.92, 17,896.26 and 5,005.40

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Solution

The fourth proportional to 11,928.92, 17,896.26 and 5,005.40 is: 7,509.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.92 : 17,896.26 = 5,005.40 : x
  2. Step 2: Convert to fraction form
    11,928.92/17,896.26 = 5,005.40/x
  3. Step 3: Cross multiply
    11,928.92x = 17,896.26 × 5,005.40
  4. Step 4: Simplify right side
    11,928.92x = 89,577,939.80
  5. Step 5: Solve for x
    x = 89,577,939.80/11,928.92
  6. Step 6: Final answer
    x = 7,509.31

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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.