Home / 13,385.88-20,078.87-4,026.02

Finding the Fourth Proportional to 13,385.88, 20,078.87 and 4,026.02

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Solution

The fourth proportional to 13,385.88, 20,078.87 and 4,026.02 is: 6,039.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.88 : 20,078.87 = 4,026.02 : x
  2. Step 2: Convert to fraction form
    13,385.88/20,078.87 = 4,026.02/x
  3. Step 3: Cross multiply
    13,385.88x = 20,078.87 × 4,026.02
  4. Step 4: Simplify right side
    13,385.88x = 80,837,811.67
  5. Step 5: Solve for x
    x = 80,837,811.67/13,385.88
  6. Step 6: Final answer
    x = 6,039.04

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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.