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Finding the Fourth Proportional to 7,539.80, 11,292.42 and 7,375.64

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Solution

The fourth proportional to 7,539.80, 11,292.42 and 7,375.64 is: 11,046.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,539.80 : 11,292.42 = 7,375.64 : x
  2. Step 2: Convert to fraction form
    7,539.80/11,292.42 = 7,375.64/x
  3. Step 3: Cross multiply
    7,539.80x = 11,292.42 × 7,375.64
  4. Step 4: Simplify right side
    7,539.80x = 83,288,824.65
  5. Step 5: Solve for x
    x = 83,288,824.65/7,539.80
  6. Step 6: Final answer
    x = 11,046.56

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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.