Home / 11,986.46-17,979.86-4,591.29

Finding the Fourth Proportional to 11,986.46, 17,979.86 and 4,591.29

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Solution

The fourth proportional to 11,986.46, 17,979.86 and 4,591.29 is: 6,887.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.46 : 17,979.86 = 4,591.29 : x
  2. Step 2: Convert to fraction form
    11,986.46/17,979.86 = 4,591.29/x
  3. Step 3: Cross multiply
    11,986.46x = 17,979.86 × 4,591.29
  4. Step 4: Simplify right side
    11,986.46x = 82,550,728.46
  5. Step 5: Solve for x
    x = 82,550,728.46/11,986.46
  6. Step 6: Final answer
    x = 6,887.00

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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.