Home / 8,087.14-12,122.21-3,156.67

Finding the Fourth Proportional to 8,087.14, 12,122.21 and 3,156.67

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Solution

The fourth proportional to 8,087.14, 12,122.21 and 3,156.67 is: 4,731.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,087.14 : 12,122.21 = 3,156.67 : x
  2. Step 2: Convert to fraction form
    8,087.14/12,122.21 = 3,156.67/x
  3. Step 3: Cross multiply
    8,087.14x = 12,122.21 × 3,156.67
  4. Step 4: Simplify right side
    8,087.14x = 38,265,821.93
  5. Step 5: Solve for x
    x = 38,265,821.93/8,087.14
  6. Step 6: Final answer
    x = 4,731.69

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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.