Home / 18,861.44-28,296.68-13,325.60

Finding the Fourth Proportional to 18,861.44, 28,296.68 and 13,325.60

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Solution

The fourth proportional to 18,861.44, 28,296.68 and 13,325.60 is: 19,991.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,861.44 : 28,296.68 = 13,325.60 : x
  2. Step 2: Convert to fraction form
    18,861.44/28,296.68 = 13,325.60/x
  3. Step 3: Cross multiply
    18,861.44x = 28,296.68 × 13,325.60
  4. Step 4: Simplify right side
    18,861.44x = 377,070,239.01
  5. Step 5: Solve for x
    x = 377,070,239.01/18,861.44
  6. Step 6: Final answer
    x = 19,991.59

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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.