Home / 11,775.10-17,651.67-3,978.46

Finding the Fourth Proportional to 11,775.10, 17,651.67 and 3,978.46

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Solution

The fourth proportional to 11,775.10, 17,651.67 and 3,978.46 is: 5,963.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,775.10 : 17,651.67 = 3,978.46 : x
  2. Step 2: Convert to fraction form
    11,775.10/17,651.67 = 3,978.46/x
  3. Step 3: Cross multiply
    11,775.10x = 17,651.67 × 3,978.46
  4. Step 4: Simplify right side
    11,775.10x = 70,226,463.03
  5. Step 5: Solve for x
    x = 70,226,463.03/11,775.10
  6. Step 6: Final answer
    x = 5,963.98

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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.