Home / 13,731.06-20,633.40-12,016.80

Finding the Fourth Proportional to 13,731.06, 20,633.40 and 12,016.80

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Solution

The fourth proportional to 13,731.06, 20,633.40 and 12,016.80 is: 18,057.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.06 : 20,633.40 = 12,016.80 : x
  2. Step 2: Convert to fraction form
    13,731.06/20,633.40 = 12,016.80/x
  3. Step 3: Cross multiply
    13,731.06x = 20,633.40 × 12,016.80
  4. Step 4: Simplify right side
    13,731.06x = 247,947,441.12
  5. Step 5: Solve for x
    x = 247,947,441.12/13,731.06
  6. Step 6: Final answer
    x = 18,057.41

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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.