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Finding the Fourth Proportional to 7,416, 11,122.68 and 3,255.24

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Solution

The fourth proportional to 7,416, 11,122.68 and 3,255.24 is: 4,882.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,416 : 11,122.68 = 3,255.24 : x
  2. Step 2: Convert to fraction form
    7,416/11,122.68 = 3,255.24/x
  3. Step 3: Cross multiply
    7,416x = 11,122.68 × 3,255.24
  4. Step 4: Simplify right side
    7,416x = 36,206,992.84
  5. Step 5: Solve for x
    x = 36,206,992.84/7,416
  6. Step 6: Final answer
    x = 4,882.28

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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.