Home / 13,755.56-20,633.38-4,990.49

Finding the Fourth Proportional to 13,755.56, 20,633.38 and 4,990.49

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Solution

The fourth proportional to 13,755.56, 20,633.38 and 4,990.49 is: 7,485.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.56 : 20,633.38 = 4,990.49 : x
  2. Step 2: Convert to fraction form
    13,755.56/20,633.38 = 4,990.49/x
  3. Step 3: Cross multiply
    13,755.56x = 20,633.38 × 4,990.49
  4. Step 4: Simplify right side
    13,755.56x = 102,970,560.91
  5. Step 5: Solve for x
    x = 102,970,560.91/13,755.56
  6. Step 6: Final answer
    x = 7,485.74

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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.