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Finding the Fourth Proportional to 13,833.48, 20,751.51 and 5,511.48

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Solution

The fourth proportional to 13,833.48, 20,751.51 and 5,511.48 is: 8,267.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,833.48 : 20,751.51 = 5,511.48 : x
  2. Step 2: Convert to fraction form
    13,833.48/20,751.51 = 5,511.48/x
  3. Step 3: Cross multiply
    13,833.48x = 20,751.51 × 5,511.48
  4. Step 4: Simplify right side
    13,833.48x = 114,371,532.33
  5. Step 5: Solve for x
    x = 114,371,532.33/13,833.48
  6. Step 6: Final answer
    x = 8,267.73

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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.