Home / 13,241.97-18,268.70-8,528.99

Finding the Fourth Proportional to 13,241.97, 18,268.70 and 8,528.99

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Solution

The fourth proportional to 13,241.97, 18,268.70 and 8,528.99 is: 11,766.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,241.97 : 18,268.70 = 8,528.99 : x
  2. Step 2: Convert to fraction form
    13,241.97/18,268.70 = 8,528.99/x
  3. Step 3: Cross multiply
    13,241.97x = 18,268.70 × 8,528.99
  4. Step 4: Simplify right side
    13,241.97x = 155,813,425.62
  5. Step 5: Solve for x
    x = 155,813,425.62/13,241.97
  6. Step 6: Final answer
    x = 11,766.63

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1.5x scale

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.