Home / 13,383.10-20,074.59-3,387.94

Finding the Fourth Proportional to 13,383.10, 20,074.59 and 3,387.94

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Solution

The fourth proportional to 13,383.10, 20,074.59 and 3,387.94 is: 5,081.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,383.10 : 20,074.59 = 3,387.94 : x
  2. Step 2: Convert to fraction form
    13,383.10/20,074.59 = 3,387.94/x
  3. Step 3: Cross multiply
    13,383.10x = 20,074.59 × 3,387.94
  4. Step 4: Simplify right side
    13,383.10x = 68,011,506.44
  5. Step 5: Solve for x
    x = 68,011,506.44/13,383.10
  6. Step 6: Final answer
    x = 5,081.89

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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.