Home / 14,120.82-21,166.45-4,757.60

Finding the Fourth Proportional to 14,120.82, 21,166.45 and 4,757.60

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Solution

The fourth proportional to 14,120.82, 21,166.45 and 4,757.60 is: 7,131.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120.82 : 21,166.45 = 4,757.60 : x
  2. Step 2: Convert to fraction form
    14,120.82/21,166.45 = 4,757.60/x
  3. Step 3: Cross multiply
    14,120.82x = 21,166.45 × 4,757.60
  4. Step 4: Simplify right side
    14,120.82x = 100,701,543.54
  5. Step 5: Solve for x
    x = 100,701,543.54/14,120.82
  6. Step 6: Final answer
    x = 7,131.42

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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.