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Finding the Fourth Proportional to 7,953.76, 11,928.99 and 3,021.67

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Solution

The fourth proportional to 7,953.76, 11,928.99 and 3,021.67 is: 4,531.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,953.76 : 11,928.99 = 3,021.67 : x
  2. Step 2: Convert to fraction form
    7,953.76/11,928.99 = 3,021.67/x
  3. Step 3: Cross multiply
    7,953.76x = 11,928.99 × 3,021.67
  4. Step 4: Simplify right side
    7,953.76x = 36,045,471.21
  5. Step 5: Solve for x
    x = 36,045,471.21/7,953.76
  6. Step 6: Final answer
    x = 4,531.88

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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.