Home / 11,986.96-17,980.61-4,591.79

Finding the Fourth Proportional to 11,986.96, 17,980.61 and 4,591.79

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Solution

The fourth proportional to 11,986.96, 17,980.61 and 4,591.79 is: 6,887.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.96 : 17,980.61 = 4,591.79 : x
  2. Step 2: Convert to fraction form
    11,986.96/17,980.61 = 4,591.79/x
  3. Step 3: Cross multiply
    11,986.96x = 17,980.61 × 4,591.79
  4. Step 4: Simplify right side
    11,986.96x = 82,563,162.23
  5. Step 5: Solve for x
    x = 82,563,162.23/11,986.96
  6. Step 6: Final answer
    x = 6,887.75

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1.5x scale

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.