Home / 13,998.15-20,992.37-4,134.78

Finding the Fourth Proportional to 13,998.15, 20,992.37 and 4,134.78

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Solution

The fourth proportional to 13,998.15, 20,992.37 and 4,134.78 is: 6,200.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.15 : 20,992.37 = 4,134.78 : x
  2. Step 2: Convert to fraction form
    13,998.15/20,992.37 = 4,134.78/x
  3. Step 3: Cross multiply
    13,998.15x = 20,992.37 × 4,134.78
  4. Step 4: Simplify right side
    13,998.15x = 86,798,810.95
  5. Step 5: Solve for x
    x = 86,798,810.95/13,998.15
  6. Step 6: Final answer
    x = 6,200.73

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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.