Home / 11,241.15-16,865.10-5,322.55

Finding the Fourth Proportional to 11,241.15, 16,865.10 and 5,322.55

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Solution

The fourth proportional to 11,241.15, 16,865.10 and 5,322.55 is: 7,985.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,241.15 : 16,865.10 = 5,322.55 : x
  2. Step 2: Convert to fraction form
    11,241.15/16,865.10 = 5,322.55/x
  3. Step 3: Cross multiply
    11,241.15x = 16,865.10 × 5,322.55
  4. Step 4: Simplify right side
    11,241.15x = 89,765,338.01
  5. Step 5: Solve for x
    x = 89,765,338.01/11,241.15
  6. Step 6: Final answer
    x = 7,985.42

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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.