Home / 8,115.70-12,166.35-4,825.30

Finding the Fourth Proportional to 8,115.70, 12,166.35 and 4,825.30

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Solution

The fourth proportional to 8,115.70, 12,166.35 and 4,825.30 is: 7,233.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.70 : 12,166.35 = 4,825.30 : x
  2. Step 2: Convert to fraction form
    8,115.70/12,166.35 = 4,825.30/x
  3. Step 3: Cross multiply
    8,115.70x = 12,166.35 × 4,825.30
  4. Step 4: Simplify right side
    8,115.70x = 58,706,288.66
  5. Step 5: Solve for x
    x = 58,706,288.66/8,115.70
  6. Step 6: Final answer
    x = 7,233.67

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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.