Home / 7,414.65-11,109.15-3,899.43

Finding the Fourth Proportional to 7,414.65, 11,109.15 and 3,899.43

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Solution

The fourth proportional to 7,414.65, 11,109.15 and 3,899.43 is: 5,842.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,414.65 : 11,109.15 = 3,899.43 : x
  2. Step 2: Convert to fraction form
    7,414.65/11,109.15 = 3,899.43/x
  3. Step 3: Cross multiply
    7,414.65x = 11,109.15 × 3,899.43
  4. Step 4: Simplify right side
    7,414.65x = 43,319,352.78
  5. Step 5: Solve for x
    x = 43,319,352.78/7,414.65
  6. Step 6: Final answer
    x = 5,842.40

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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.