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Finding the Fourth Proportional to 8,334.86, 12,516.63 and 7,399.91

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Solution

The fourth proportional to 8,334.86, 12,516.63 and 7,399.91 is: 11,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,334.86 : 12,516.63 = 7,399.91 : x
  2. Step 2: Convert to fraction form
    8,334.86/12,516.63 = 7,399.91/x
  3. Step 3: Cross multiply
    8,334.86x = 12,516.63 × 7,399.91
  4. Step 4: Simplify right side
    8,334.86x = 92,621,872.92
  5. Step 5: Solve for x
    x = 92,621,872.92/8,334.86
  6. Step 6: Final answer
    x = 11,112.60

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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.