Home / 13,120.62-18,093.84-8,823.42

Finding the Fourth Proportional to 13,120.62, 18,093.84 and 8,823.42

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Solution

The fourth proportional to 13,120.62, 18,093.84 and 8,823.42 is: 12,167.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120.62 : 18,093.84 = 8,823.42 : x
  2. Step 2: Convert to fraction form
    13,120.62/18,093.84 = 8,823.42/x
  3. Step 3: Cross multiply
    13,120.62x = 18,093.84 × 8,823.42
  4. Step 4: Simplify right side
    13,120.62x = 159,649,549.73
  5. Step 5: Solve for x
    x = 159,649,549.73/13,120.62
  6. Step 6: Final answer
    x = 12,167.84

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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.