Home / 11,880.97-17,828.15-8,186.15

Finding the Fourth Proportional to 11,880.97, 17,828.15 and 8,186.15

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Solution

The fourth proportional to 11,880.97, 17,828.15 and 8,186.15 is: 12,283.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,880.97 : 17,828.15 = 8,186.15 : x
  2. Step 2: Convert to fraction form
    11,880.97/17,828.15 = 8,186.15/x
  3. Step 3: Cross multiply
    11,880.97x = 17,828.15 × 8,186.15
  4. Step 4: Simplify right side
    11,880.97x = 145,943,913.76
  5. Step 5: Solve for x
    x = 145,943,913.76/11,880.97
  6. Step 6: Final answer
    x = 12,283.84

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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.