Home / 13,524.03-20,236.70-7,980.03

Finding the Fourth Proportional to 13,524.03, 20,236.70 and 7,980.03

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Solution

The fourth proportional to 13,524.03, 20,236.70 and 7,980.03 is: 11,940.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,524.03 : 20,236.70 = 7,980.03 : x
  2. Step 2: Convert to fraction form
    13,524.03/20,236.70 = 7,980.03/x
  3. Step 3: Cross multiply
    13,524.03x = 20,236.70 × 7,980.03
  4. Step 4: Simplify right side
    13,524.03x = 161,489,473.10
  5. Step 5: Solve for x
    x = 161,489,473.10/13,524.03
  6. Step 6: Final answer
    x = 11,940.93

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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.