Home / 13,512.40-20,250.67-7,185.96

Finding the Fourth Proportional to 13,512.40, 20,250.67 and 7,185.96

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Solution

The fourth proportional to 13,512.40, 20,250.67 and 7,185.96 is: 10,769.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512.40 : 20,250.67 = 7,185.96 : x
  2. Step 2: Convert to fraction form
    13,512.40/20,250.67 = 7,185.96/x
  3. Step 3: Cross multiply
    13,512.40x = 20,250.67 × 7,185.96
  4. Step 4: Simplify right side
    13,512.40x = 145,520,504.59
  5. Step 5: Solve for x
    x = 145,520,504.59/13,512.40
  6. Step 6: Final answer
    x = 10,769.40

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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.