Home / 18,353.54-27,531.48-7,817.60

Finding the Fourth Proportional to 18,353.54, 27,531.48 and 7,817.60

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Solution

The fourth proportional to 18,353.54, 27,531.48 and 7,817.60 is: 11,726.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,353.54 : 27,531.48 = 7,817.60 : x
  2. Step 2: Convert to fraction form
    18,353.54/27,531.48 = 7,817.60/x
  3. Step 3: Cross multiply
    18,353.54x = 27,531.48 × 7,817.60
  4. Step 4: Simplify right side
    18,353.54x = 215,230,098.05
  5. Step 5: Solve for x
    x = 215,230,098.05/18,353.54
  6. Step 6: Final answer
    x = 11,726.90

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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.