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Finding the Fourth Proportional to 15,255.86, 22,878.47 and 7,249.68

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Solution

The fourth proportional to 15,255.86, 22,878.47 and 7,249.68 is: 10,871.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,255.86 : 22,878.47 = 7,249.68 : x
  2. Step 2: Convert to fraction form
    15,255.86/22,878.47 = 7,249.68/x
  3. Step 3: Cross multiply
    15,255.86x = 22,878.47 × 7,249.68
  4. Step 4: Simplify right side
    15,255.86x = 165,861,550.14
  5. Step 5: Solve for x
    x = 165,861,550.14/15,255.86
  6. Step 6: Final answer
    x = 10,871.99

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.