Home / 18,286.97-27,421.11-8,417.67

Finding the Fourth Proportional to 18,286.97, 27,421.11 and 8,417.67

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Solution

The fourth proportional to 18,286.97, 27,421.11 and 8,417.67 is: 12,622.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,286.97 : 27,421.11 = 8,417.67 : x
  2. Step 2: Convert to fraction form
    18,286.97/27,421.11 = 8,417.67/x
  3. Step 3: Cross multiply
    18,286.97x = 27,421.11 × 8,417.67
  4. Step 4: Simplify right side
    18,286.97x = 230,821,882.75
  5. Step 5: Solve for x
    x = 230,821,882.75/18,286.97
  6. Step 6: Final answer
    x = 12,622.21

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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.