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Finding the Fourth Proportional to 11,268.40, 16,894.04 and 8,808.40

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Solution

The fourth proportional to 11,268.40, 16,894.04 and 8,808.40 is: 13,205.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,268.40 : 16,894.04 = 8,808.40 : x
  2. Step 2: Convert to fraction form
    11,268.40/16,894.04 = 8,808.40/x
  3. Step 3: Cross multiply
    11,268.40x = 16,894.04 × 8,808.40
  4. Step 4: Simplify right side
    11,268.40x = 148,809,461.94
  5. Step 5: Solve for x
    x = 148,809,461.94/11,268.40
  6. Step 6: Final answer
    x = 13,205.91

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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.