Home / 11,975.40-17,941.21-8,680.32

Finding the Fourth Proportional to 11,975.40, 17,941.21 and 8,680.32

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Solution

The fourth proportional to 11,975.40, 17,941.21 and 8,680.32 is: 13,004.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,975.40 : 17,941.21 = 8,680.32 : x
  2. Step 2: Convert to fraction form
    11,975.40/17,941.21 = 8,680.32/x
  3. Step 3: Cross multiply
    11,975.40x = 17,941.21 × 8,680.32
  4. Step 4: Simplify right side
    11,975.40x = 155,735,422.29
  5. Step 5: Solve for x
    x = 155,735,422.29/11,975.40
  6. Step 6: Final answer
    x = 13,004.61

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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.