Home / 14,135.67-21,198.60-4,272.30

Finding the Fourth Proportional to 14,135.67, 21,198.60 and 4,272.30

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Solution

The fourth proportional to 14,135.67, 21,198.60 and 4,272.30 is: 6,406.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.67 : 21,198.60 = 4,272.30 : x
  2. Step 2: Convert to fraction form
    14,135.67/21,198.60 = 4,272.30/x
  3. Step 3: Cross multiply
    14,135.67x = 21,198.60 × 4,272.30
  4. Step 4: Simplify right side
    14,135.67x = 90,566,778.78
  5. Step 5: Solve for x
    x = 90,566,778.78/14,135.67
  6. Step 6: Final answer
    x = 6,406.97

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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.