Home / 13,835.88-20,753.82-3,447.63

Finding the Fourth Proportional to 13,835.88, 20,753.82 and 3,447.63

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Solution

The fourth proportional to 13,835.88, 20,753.82 and 3,447.63 is: 5,171.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,835.88 : 20,753.82 = 3,447.63 : x
  2. Step 2: Convert to fraction form
    13,835.88/20,753.82 = 3,447.63/x
  3. Step 3: Cross multiply
    13,835.88x = 20,753.82 × 3,447.63
  4. Step 4: Simplify right side
    13,835.88x = 71,551,492.45
  5. Step 5: Solve for x
    x = 71,551,492.45/13,835.88
  6. Step 6: Final answer
    x = 5,171.45

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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.