Home / 18,487.88-27,756.46-12,504.06

Finding the Fourth Proportional to 18,487.88, 27,756.46 and 12,504.06

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Solution

The fourth proportional to 18,487.88, 27,756.46 and 12,504.06 is: 18,772.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,487.88 : 27,756.46 = 12,504.06 : x
  2. Step 2: Convert to fraction form
    18,487.88/27,756.46 = 12,504.06/x
  3. Step 3: Cross multiply
    18,487.88x = 27,756.46 × 12,504.06
  4. Step 4: Simplify right side
    18,487.88x = 347,068,409.97
  5. Step 5: Solve for x
    x = 347,068,409.97/18,487.88
  6. Step 6: Final answer
    x = 18,772.75

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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.