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Finding the Fourth Proportional to 11,941.56, 17,879.94 and 8,239.32

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Solution

The fourth proportional to 11,941.56, 17,879.94 and 8,239.32 is: 12,336.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,941.56 : 17,879.94 = 8,239.32 : x
  2. Step 2: Convert to fraction form
    11,941.56/17,879.94 = 8,239.32/x
  3. Step 3: Cross multiply
    11,941.56x = 17,879.94 × 8,239.32
  4. Step 4: Simplify right side
    11,941.56x = 147,318,547.24
  5. Step 5: Solve for x
    x = 147,318,547.24/11,941.56
  6. Step 6: Final answer
    x = 12,336.62

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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.