Home / 11,340.78-17,011.20-3,443.37

Finding the Fourth Proportional to 11,340.78, 17,011.20 and 3,443.37

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Solution

The fourth proportional to 11,340.78, 17,011.20 and 3,443.37 is: 5,165.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,340.78 : 17,011.20 = 3,443.37 : x
  2. Step 2: Convert to fraction form
    11,340.78/17,011.20 = 3,443.37/x
  3. Step 3: Cross multiply
    11,340.78x = 17,011.20 × 3,443.37
  4. Step 4: Simplify right side
    11,340.78x = 58,575,855.74
  5. Step 5: Solve for x
    x = 58,575,855.74/11,340.78
  6. Step 6: Final answer
    x = 5,165.06

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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.