Home / 13,893.30-20,885.11-11,150.03

Finding the Fourth Proportional to 13,893.30, 20,885.11 and 11,150.03

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Solution

The fourth proportional to 13,893.30, 20,885.11 and 11,150.03 is: 16,761.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,893.30 : 20,885.11 = 11,150.03 : x
  2. Step 2: Convert to fraction form
    13,893.30/20,885.11 = 11,150.03/x
  3. Step 3: Cross multiply
    13,893.30x = 20,885.11 × 11,150.03
  4. Step 4: Simplify right side
    13,893.30x = 232,869,603.05
  5. Step 5: Solve for x
    x = 232,869,603.05/13,893.30
  6. Step 6: Final answer
    x = 16,761.29

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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.