Home / 13,677.26-18,871.48-8,635.41

Finding the Fourth Proportional to 13,677.26, 18,871.48 and 8,635.41

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Solution

The fourth proportional to 13,677.26, 18,871.48 and 8,635.41 is: 11,914.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.26 : 18,871.48 = 8,635.41 : x
  2. Step 2: Convert to fraction form
    13,677.26/18,871.48 = 8,635.41/x
  3. Step 3: Cross multiply
    13,677.26x = 18,871.48 × 8,635.41
  4. Step 4: Simplify right side
    13,677.26x = 162,962,977.90
  5. Step 5: Solve for x
    x = 162,962,977.90/13,677.26
  6. Step 6: Final answer
    x = 11,914.89

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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.