Home / 13,755.68-20,644.44-4,993.12

Finding the Fourth Proportional to 13,755.68, 20,644.44 and 4,993.12

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Solution

The fourth proportional to 13,755.68, 20,644.44 and 4,993.12 is: 7,493.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.68 : 20,644.44 = 4,993.12 : x
  2. Step 2: Convert to fraction form
    13,755.68/20,644.44 = 4,993.12/x
  3. Step 3: Cross multiply
    13,755.68x = 20,644.44 × 4,993.12
  4. Step 4: Simplify right side
    13,755.68x = 103,080,166.25
  5. Step 5: Solve for x
    x = 103,080,166.25/13,755.68
  6. Step 6: Final answer
    x = 7,493.64

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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.