Home / 13,765.60-18,997.20-7,796.96

Finding the Fourth Proportional to 13,765.60, 18,997.20 and 7,796.96

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Solution

The fourth proportional to 13,765.60, 18,997.20 and 7,796.96 is: 10,760.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.60 : 18,997.20 = 7,796.96 : x
  2. Step 2: Convert to fraction form
    13,765.60/18,997.20 = 7,796.96/x
  3. Step 3: Cross multiply
    13,765.60x = 18,997.20 × 7,796.96
  4. Step 4: Simplify right side
    13,765.60x = 148,120,408.51
  5. Step 5: Solve for x
    x = 148,120,408.51/13,765.60
  6. Step 6: Final answer
    x = 10,760.19

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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.