Home / 13,216.31-18,241.94-8,177.60

Finding the Fourth Proportional to 13,216.31, 18,241.94 and 8,177.60

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Solution

The fourth proportional to 13,216.31, 18,241.94 and 8,177.60 is: 11,287.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.31 : 18,241.94 = 8,177.60 : x
  2. Step 2: Convert to fraction form
    13,216.31/18,241.94 = 8,177.60/x
  3. Step 3: Cross multiply
    13,216.31x = 18,241.94 × 8,177.60
  4. Step 4: Simplify right side
    13,216.31x = 149,175,156.45
  5. Step 5: Solve for x
    x = 149,175,156.45/13,216.31
  6. Step 6: Final answer
    x = 11,287.21

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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.