Home / 13,336.86-20,006.61-3,975.21

Finding the Fourth Proportional to 13,336.86, 20,006.61 and 3,975.21

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Solution

The fourth proportional to 13,336.86, 20,006.61 and 3,975.21 is: 5,963.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,336.86 : 20,006.61 = 3,975.21 : x
  2. Step 2: Convert to fraction form
    13,336.86/20,006.61 = 3,975.21/x
  3. Step 3: Cross multiply
    13,336.86x = 20,006.61 × 3,975.21
  4. Step 4: Simplify right side
    13,336.86x = 79,530,551.22
  5. Step 5: Solve for x
    x = 79,530,551.22/13,336.86
  6. Step 6: Final answer
    x = 5,963.22

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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.