Home / 11,627.46-17,409.24-8,120.97

Finding the Fourth Proportional to 11,627.46, 17,409.24 and 8,120.97

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Solution

The fourth proportional to 11,627.46, 17,409.24 and 8,120.97 is: 12,159.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,627.46 : 17,409.24 = 8,120.97 : x
  2. Step 2: Convert to fraction form
    11,627.46/17,409.24 = 8,120.97/x
  3. Step 3: Cross multiply
    11,627.46x = 17,409.24 × 8,120.97
  4. Step 4: Simplify right side
    11,627.46x = 141,379,915.76
  5. Step 5: Solve for x
    x = 141,379,915.76/11,627.46
  6. Step 6: Final answer
    x = 12,159.14

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1.5x scale

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.