Home / 13,513.44-20,181.43-11,517.80

Finding the Fourth Proportional to 13,513.44, 20,181.43 and 11,517.80

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Solution

The fourth proportional to 13,513.44, 20,181.43 and 11,517.80 is: 17,201.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.44 : 20,181.43 = 11,517.80 : x
  2. Step 2: Convert to fraction form
    13,513.44/20,181.43 = 11,517.80/x
  3. Step 3: Cross multiply
    13,513.44x = 20,181.43 × 11,517.80
  4. Step 4: Simplify right side
    13,513.44x = 232,445,674.45
  5. Step 5: Solve for x
    x = 232,445,674.45/13,513.44
  6. Step 6: Final answer
    x = 17,201.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.