Home / 13,230.72-19,845.84-3,996.72

Finding the Fourth Proportional to 13,230.72, 19,845.84 and 3,996.72

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Solution

The fourth proportional to 13,230.72, 19,845.84 and 3,996.72 is: 5,995.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,230.72 : 19,845.84 = 3,996.72 : x
  2. Step 2: Convert to fraction form
    13,230.72/19,845.84 = 3,996.72/x
  3. Step 3: Cross multiply
    13,230.72x = 19,845.84 × 3,996.72
  4. Step 4: Simplify right side
    13,230.72x = 79,318,265.64
  5. Step 5: Solve for x
    x = 79,318,265.64/13,230.72
  6. Step 6: Final answer
    x = 5,995.01

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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.