Home / 13,600.96-20,390.37-5,276.68

Finding the Fourth Proportional to 13,600.96, 20,390.37 and 5,276.68

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Solution

The fourth proportional to 13,600.96, 20,390.37 and 5,276.68 is: 7,910.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600.96 : 20,390.37 = 5,276.68 : x
  2. Step 2: Convert to fraction form
    13,600.96/20,390.37 = 5,276.68/x
  3. Step 3: Cross multiply
    13,600.96x = 20,390.37 × 5,276.68
  4. Step 4: Simplify right side
    13,600.96x = 107,593,457.57
  5. Step 5: Solve for x
    x = 107,593,457.57/13,600.96
  6. Step 6: Final answer
    x = 7,910.73

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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.