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Finding the Fourth Proportional to 11,881.04, 17,823.96 and 8,185.04

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Solution

The fourth proportional to 11,881.04, 17,823.96 and 8,185.04 is: 12,279.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,881.04 : 17,823.96 = 8,185.04 : x
  2. Step 2: Convert to fraction form
    11,881.04/17,823.96 = 8,185.04/x
  3. Step 3: Cross multiply
    11,881.04x = 17,823.96 × 8,185.04
  4. Step 4: Simplify right side
    11,881.04x = 145,889,825.56
  5. Step 5: Solve for x
    x = 145,889,825.56/11,881.04
  6. Step 6: Final answer
    x = 12,279.21

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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.