Home / 13,910.98-20,866.47-3,523.54

Finding the Fourth Proportional to 13,910.98, 20,866.47 and 3,523.54

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Solution

The fourth proportional to 13,910.98, 20,866.47 and 3,523.54 is: 5,285.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,910.98 : 20,866.47 = 3,523.54 : x
  2. Step 2: Convert to fraction form
    13,910.98/20,866.47 = 3,523.54/x
  3. Step 3: Cross multiply
    13,910.98x = 20,866.47 × 3,523.54
  4. Step 4: Simplify right side
    13,910.98x = 73,523,841.70
  5. Step 5: Solve for x
    x = 73,523,841.70/13,910.98
  6. Step 6: Final answer
    x = 5,285.31

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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.