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Finding the Fourth Proportional to 8,969.97, 13,454.97 and 4,288.88

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Solution

The fourth proportional to 8,969.97, 13,454.97 and 4,288.88 is: 6,433.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,969.97 : 13,454.97 = 4,288.88 : x
  2. Step 2: Convert to fraction form
    8,969.97/13,454.97 = 4,288.88/x
  3. Step 3: Cross multiply
    8,969.97x = 13,454.97 × 4,288.88
  4. Step 4: Simplify right side
    8,969.97x = 57,706,751.73
  5. Step 5: Solve for x
    x = 57,706,751.73/8,969.97
  6. Step 6: Final answer
    x = 6,433.33

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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.