Home / 13,755.68-20,633.54-4,990.60

Finding the Fourth Proportional to 13,755.68, 20,633.54 and 4,990.60

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Solution

The fourth proportional to 13,755.68, 20,633.54 and 4,990.60 is: 7,485.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.68 : 20,633.54 = 4,990.60 : x
  2. Step 2: Convert to fraction form
    13,755.68/20,633.54 = 4,990.60/x
  3. Step 3: Cross multiply
    13,755.68x = 20,633.54 × 4,990.60
  4. Step 4: Simplify right side
    13,755.68x = 102,973,744.72
  5. Step 5: Solve for x
    x = 102,973,744.72/13,755.68
  6. Step 6: Final answer
    x = 7,485.91

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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.