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Finding the Fourth Proportional to 18,104.40, 27,156.60 and 13,150.80

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Solution

The fourth proportional to 18,104.40, 27,156.60 and 13,150.80 is: 19,726.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,104.40 : 27,156.60 = 13,150.80 : x
  2. Step 2: Convert to fraction form
    18,104.40/27,156.60 = 13,150.80/x
  3. Step 3: Cross multiply
    18,104.40x = 27,156.60 × 13,150.80
  4. Step 4: Simplify right side
    18,104.40x = 357,131,015.28
  5. Step 5: Solve for x
    x = 357,131,015.28/18,104.40
  6. Step 6: Final answer
    x = 19,726.20

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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.