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Finding the Fourth Proportional to 7,604.82, 11,407.91 and 4,320.68

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Solution

The fourth proportional to 7,604.82, 11,407.91 and 4,320.68 is: 6,481.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,604.82 : 11,407.91 = 4,320.68 : x
  2. Step 2: Convert to fraction form
    7,604.82/11,407.91 = 4,320.68/x
  3. Step 3: Cross multiply
    7,604.82x = 11,407.91 × 4,320.68
  4. Step 4: Simplify right side
    7,604.82x = 49,289,849.94
  5. Step 5: Solve for x
    x = 49,289,849.94/7,604.82
  6. Step 6: Final answer
    x = 6,481.40

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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.