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Finding the Fourth Proportional to 12,305.26, 18,448.94 and 4,907.50

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Solution

The fourth proportional to 12,305.26, 18,448.94 and 4,907.50 is: 7,357.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305.26 : 18,448.94 = 4,907.50 : x
  2. Step 2: Convert to fraction form
    12,305.26/18,448.94 = 4,907.50/x
  3. Step 3: Cross multiply
    12,305.26x = 18,448.94 × 4,907.50
  4. Step 4: Simplify right side
    12,305.26x = 90,538,173.05
  5. Step 5: Solve for x
    x = 90,538,173.05/12,305.26
  6. Step 6: Final answer
    x = 7,357.68

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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.