Home / 13,241.44-18,269.68-8,531.84

Finding the Fourth Proportional to 13,241.44, 18,269.68 and 8,531.84

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Solution

The fourth proportional to 13,241.44, 18,269.68 and 8,531.84 is: 11,771.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,241.44 : 18,269.68 = 8,531.84 : x
  2. Step 2: Convert to fraction form
    13,241.44/18,269.68 = 8,531.84/x
  3. Step 3: Cross multiply
    13,241.44x = 18,269.68 × 8,531.84
  4. Step 4: Simplify right side
    13,241.44x = 155,873,986.61
  5. Step 5: Solve for x
    x = 155,873,986.61/13,241.44
  6. Step 6: Final answer
    x = 11,771.68

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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.