Home / 13,765.72-20,649.44-5,000.68

Finding the Fourth Proportional to 13,765.72, 20,649.44 and 5,000.68

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Solution

The fourth proportional to 13,765.72, 20,649.44 and 5,000.68 is: 7,501.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.72 : 20,649.44 = 5,000.68 : x
  2. Step 2: Convert to fraction form
    13,765.72/20,649.44 = 5,000.68/x
  3. Step 3: Cross multiply
    13,765.72x = 20,649.44 × 5,000.68
  4. Step 4: Simplify right side
    13,765.72x = 103,261,241.62
  5. Step 5: Solve for x
    x = 103,261,241.62/13,765.72
  6. Step 6: Final answer
    x = 7,501.33

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Double scale
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Similar ratio
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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.