Home / 13,558.62-20,330.37-4,195.98

Finding the Fourth Proportional to 13,558.62, 20,330.37 and 4,195.98

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Solution

The fourth proportional to 13,558.62, 20,330.37 and 4,195.98 is: 6,291.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.62 : 20,330.37 = 4,195.98 : x
  2. Step 2: Convert to fraction form
    13,558.62/20,330.37 = 4,195.98/x
  3. Step 3: Cross multiply
    13,558.62x = 20,330.37 × 4,195.98
  4. Step 4: Simplify right side
    13,558.62x = 85,305,825.91
  5. Step 5: Solve for x
    x = 85,305,825.91/13,558.62
  6. Step 6: Final answer
    x = 6,291.63

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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.