Home / 13,446.40-20,173.20-11,995.60

Finding the Fourth Proportional to 13,446.40, 20,173.20 and 11,995.60

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Solution

The fourth proportional to 13,446.40, 20,173.20 and 11,995.60 is: 17,996.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.40 : 20,173.20 = 11,995.60 : x
  2. Step 2: Convert to fraction form
    13,446.40/20,173.20 = 11,995.60/x
  3. Step 3: Cross multiply
    13,446.40x = 20,173.20 × 11,995.60
  4. Step 4: Simplify right side
    13,446.40x = 241,989,637.92
  5. Step 5: Solve for x
    x = 241,989,637.92/13,446.40
  6. Step 6: Final answer
    x = 17,996.61

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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.