Home / 13,917.92-20,827.20-12,090.56

Finding the Fourth Proportional to 13,917.92, 20,827.20 and 12,090.56

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Solution

The fourth proportional to 13,917.92, 20,827.20 and 12,090.56 is: 18,092.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.92 : 20,827.20 = 12,090.56 : x
  2. Step 2: Convert to fraction form
    13,917.92/20,827.20 = 12,090.56/x
  3. Step 3: Cross multiply
    13,917.92x = 20,827.20 × 12,090.56
  4. Step 4: Simplify right side
    13,917.92x = 251,812,511.23
  5. Step 5: Solve for x
    x = 251,812,511.23/13,917.92
  6. Step 6: Final answer
    x = 18,092.68

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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.