Home / 13,627.48-18,772.14-11,855.92

Finding the Fourth Proportional to 13,627.48, 18,772.14 and 11,855.92

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Solution

The fourth proportional to 13,627.48, 18,772.14 and 11,855.92 is: 16,331.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,627.48 : 18,772.14 = 11,855.92 : x
  2. Step 2: Convert to fraction form
    13,627.48/18,772.14 = 11,855.92/x
  3. Step 3: Cross multiply
    13,627.48x = 18,772.14 × 11,855.92
  4. Step 4: Simplify right side
    13,627.48x = 222,560,990.07
  5. Step 5: Solve for x
    x = 222,560,990.07/13,627.48
  6. Step 6: Final answer
    x = 16,331.78

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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.