Home / 10,780.35-16,170.49-3,385.36

Finding the Fourth Proportional to 10,780.35, 16,170.49 and 3,385.36

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Solution

The fourth proportional to 10,780.35, 16,170.49 and 3,385.36 is: 5,078.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780.35 : 16,170.49 = 3,385.36 : x
  2. Step 2: Convert to fraction form
    10,780.35/16,170.49 = 3,385.36/x
  3. Step 3: Cross multiply
    10,780.35x = 16,170.49 × 3,385.36
  4. Step 4: Simplify right side
    10,780.35x = 54,742,930.03
  5. Step 5: Solve for x
    x = 54,742,930.03/10,780.35
  6. Step 6: Final answer
    x = 5,078.03

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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.