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Finding the Fourth Proportional to 7,578.99, 11,370.02 and 3,196.44

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Solution

The fourth proportional to 7,578.99, 11,370.02 and 3,196.44 is: 4,795.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,578.99 : 11,370.02 = 3,196.44 : x
  2. Step 2: Convert to fraction form
    7,578.99/11,370.02 = 3,196.44/x
  3. Step 3: Cross multiply
    7,578.99x = 11,370.02 × 3,196.44
  4. Step 4: Simplify right side
    7,578.99x = 36,343,570.75
  5. Step 5: Solve for x
    x = 36,343,570.75/7,578.99
  6. Step 6: Final answer
    x = 4,795.31

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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.