Home / 13,912.70-19,200.56-8,610.60

Finding the Fourth Proportional to 13,912.70, 19,200.56 and 8,610.60

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Solution

The fourth proportional to 13,912.70, 19,200.56 and 8,610.60 is: 11,883.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.70 : 19,200.56 = 8,610.60 : x
  2. Step 2: Convert to fraction form
    13,912.70/19,200.56 = 8,610.60/x
  3. Step 3: Cross multiply
    13,912.70x = 19,200.56 × 8,610.60
  4. Step 4: Simplify right side
    13,912.70x = 165,328,341.94
  5. Step 5: Solve for x
    x = 165,328,341.94/13,912.70
  6. Step 6: Final answer
    x = 11,883.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.