Home / 14,379.57-21,556.60-5,620.64

Finding the Fourth Proportional to 14,379.57, 21,556.60 and 5,620.64

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Solution

The fourth proportional to 14,379.57, 21,556.60 and 5,620.64 is: 8,425.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,379.57 : 21,556.60 = 5,620.64 : x
  2. Step 2: Convert to fraction form
    14,379.57/21,556.60 = 5,620.64/x
  3. Step 3: Cross multiply
    14,379.57x = 21,556.60 × 5,620.64
  4. Step 4: Simplify right side
    14,379.57x = 121,161,766.39
  5. Step 5: Solve for x
    x = 121,161,766.39/14,379.57
  6. Step 6: Final answer
    x = 8,425.97

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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.