Home / 13,769.08-18,989.10-11,654.44

Finding the Fourth Proportional to 13,769.08, 18,989.10 and 11,654.44

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Solution

The fourth proportional to 13,769.08, 18,989.10 and 11,654.44 is: 16,072.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.08 : 18,989.10 = 11,654.44 : x
  2. Step 2: Convert to fraction form
    13,769.08/18,989.10 = 11,654.44/x
  3. Step 3: Cross multiply
    13,769.08x = 18,989.10 × 11,654.44
  4. Step 4: Simplify right side
    13,769.08x = 221,307,326.60
  5. Step 5: Solve for x
    x = 221,307,326.60/13,769.08
  6. Step 6: Final answer
    x = 16,072.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.