Home / 13,996.98-20,999.25-5,232.78

Finding the Fourth Proportional to 13,996.98, 20,999.25 and 5,232.78

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Solution

The fourth proportional to 13,996.98, 20,999.25 and 5,232.78 is: 7,850.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,996.98 : 20,999.25 = 5,232.78 : x
  2. Step 2: Convert to fraction form
    13,996.98/20,999.25 = 5,232.78/x
  3. Step 3: Cross multiply
    13,996.98x = 20,999.25 × 5,232.78
  4. Step 4: Simplify right side
    13,996.98x = 109,884,455.42
  5. Step 5: Solve for x
    x = 109,884,455.42/13,996.98
  6. Step 6: Final answer
    x = 7,850.58

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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.