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Finding the Fourth Proportional to 13,756, 18,984 and 8,091.04

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Solution

The fourth proportional to 13,756, 18,984 and 8,091.04 is: 11,166.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756 : 18,984 = 8,091.04 : x
  2. Step 2: Convert to fraction form
    13,756/18,984 = 8,091.04/x
  3. Step 3: Cross multiply
    13,756x = 18,984 × 8,091.04
  4. Step 4: Simplify right side
    13,756x = 153,600,303.36
  5. Step 5: Solve for x
    x = 153,600,303.36/13,756
  6. Step 6: Final answer
    x = 11,166.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.