Home / 9,405.90-14,107.86-3,859.83

Finding the Fourth Proportional to 9,405.90, 14,107.86 and 3,859.83

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Solution

The fourth proportional to 9,405.90, 14,107.86 and 3,859.83 is: 5,789.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,405.90 : 14,107.86 = 3,859.83 : x
  2. Step 2: Convert to fraction form
    9,405.90/14,107.86 = 3,859.83/x
  3. Step 3: Cross multiply
    9,405.90x = 14,107.86 × 3,859.83
  4. Step 4: Simplify right side
    9,405.90x = 54,453,941.26
  5. Step 5: Solve for x
    x = 54,453,941.26/9,405.90
  6. Step 6: Final answer
    x = 5,789.34

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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.