Home / 7,829.72-11,732.70-3,144.96

Finding the Fourth Proportional to 7,829.72, 11,732.70 and 3,144.96

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Solution

The fourth proportional to 7,829.72, 11,732.70 and 3,144.96 is: 4,712.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,829.72 : 11,732.70 = 3,144.96 : x
  2. Step 2: Convert to fraction form
    7,829.72/11,732.70 = 3,144.96/x
  3. Step 3: Cross multiply
    7,829.72x = 11,732.70 × 3,144.96
  4. Step 4: Simplify right side
    7,829.72x = 36,898,872.19
  5. Step 5: Solve for x
    x = 36,898,872.19/7,829.72
  6. Step 6: Final answer
    x = 4,712.67

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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.