Home / 13,910.75-20,867.03-6,119.56

Finding the Fourth Proportional to 13,910.75, 20,867.03 and 6,119.56

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Solution

The fourth proportional to 13,910.75, 20,867.03 and 6,119.56 is: 9,179.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,910.75 : 20,867.03 = 6,119.56 : x
  2. Step 2: Convert to fraction form
    13,910.75/20,867.03 = 6,119.56/x
  3. Step 3: Cross multiply
    13,910.75x = 20,867.03 × 6,119.56
  4. Step 4: Simplify right side
    13,910.75x = 127,697,042.11
  5. Step 5: Solve for x
    x = 127,697,042.11/13,910.75
  6. Step 6: Final answer
    x = 9,179.74

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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.