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Finding the Fourth Proportional to 13,773.44, 20,651.99 and 5,443.80

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Solution

The fourth proportional to 13,773.44, 20,651.99 and 5,443.80 is: 8,162.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,773.44 : 20,651.99 = 5,443.80 : x
  2. Step 2: Convert to fraction form
    13,773.44/20,651.99 = 5,443.80/x
  3. Step 3: Cross multiply
    13,773.44x = 20,651.99 × 5,443.80
  4. Step 4: Simplify right side
    13,773.44x = 112,425,275.94
  5. Step 5: Solve for x
    x = 112,425,275.94/13,773.44
  6. Step 6: Final answer
    x = 8,162.47

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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.