Home / 13,824.05-20,761.07-12,711.44

Finding the Fourth Proportional to 13,824.05, 20,761.07 and 12,711.44

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Solution

The fourth proportional to 13,824.05, 20,761.07 and 12,711.44 is: 19,090.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.05 : 20,761.07 = 12,711.44 : x
  2. Step 2: Convert to fraction form
    13,824.05/20,761.07 = 12,711.44/x
  3. Step 3: Cross multiply
    13,824.05x = 20,761.07 × 12,711.44
  4. Step 4: Simplify right side
    13,824.05x = 263,902,928.28
  5. Step 5: Solve for x
    x = 263,902,928.28/13,824.05
  6. Step 6: Final answer
    x = 19,090.14

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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.