Home / 13,755.26-20,620.06-7,173.61

Finding the Fourth Proportional to 13,755.26, 20,620.06 and 7,173.61

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Solution

The fourth proportional to 13,755.26, 20,620.06 and 7,173.61 is: 10,753.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.26 : 20,620.06 = 7,173.61 : x
  2. Step 2: Convert to fraction form
    13,755.26/20,620.06 = 7,173.61/x
  3. Step 3: Cross multiply
    13,755.26x = 20,620.06 × 7,173.61
  4. Step 4: Simplify right side
    13,755.26x = 147,920,268.62
  5. Step 5: Solve for x
    x = 147,920,268.62/13,755.26
  6. Step 6: Final answer
    x = 10,753.72

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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.