Home / 13,913.01-20,876.43-11,104.72

Finding the Fourth Proportional to 13,913.01, 20,876.43 and 11,104.72

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Solution

The fourth proportional to 13,913.01, 20,876.43 and 11,104.72 is: 16,662.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913.01 : 20,876.43 = 11,104.72 : x
  2. Step 2: Convert to fraction form
    13,913.01/20,876.43 = 11,104.72/x
  3. Step 3: Cross multiply
    13,913.01x = 20,876.43 × 11,104.72
  4. Step 4: Simplify right side
    13,913.01x = 231,826,977.49
  5. Step 5: Solve for x
    x = 231,826,977.49/13,913.01
  6. Step 6: Final answer
    x = 16,662.60

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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.