Home / 13,524.68-18,676.94-12,788.44

Finding the Fourth Proportional to 13,524.68, 18,676.94 and 12,788.44

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Solution

The fourth proportional to 13,524.68, 18,676.94 and 12,788.44 is: 17,660.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,524.68 : 18,676.94 = 12,788.44 : x
  2. Step 2: Convert to fraction form
    13,524.68/18,676.94 = 12,788.44/x
  3. Step 3: Cross multiply
    13,524.68x = 18,676.94 × 12,788.44
  4. Step 4: Simplify right side
    13,524.68x = 238,848,926.57
  5. Step 5: Solve for x
    x = 238,848,926.57/13,524.68
  6. Step 6: Final answer
    x = 17,660.23

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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.