Home / 13,715.49-20,540.43-13,026.60

Finding the Fourth Proportional to 13,715.49, 20,540.43 and 13,026.60

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Solution

The fourth proportional to 13,715.49, 20,540.43 and 13,026.60 is: 19,508.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,715.49 : 20,540.43 = 13,026.60 : x
  2. Step 2: Convert to fraction form
    13,715.49/20,540.43 = 13,026.60/x
  3. Step 3: Cross multiply
    13,715.49x = 20,540.43 × 13,026.60
  4. Step 4: Simplify right side
    13,715.49x = 267,571,965.44
  5. Step 5: Solve for x
    x = 267,571,965.44/13,715.49
  6. Step 6: Final answer
    x = 19,508.74

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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.