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Finding the Fourth Proportional to 18,079.04, 27,171.04 and 11,961.92

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Solution

The fourth proportional to 18,079.04, 27,171.04 and 11,961.92 is: 17,977.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,079.04 : 27,171.04 = 11,961.92 : x
  2. Step 2: Convert to fraction form
    18,079.04/27,171.04 = 11,961.92/x
  3. Step 3: Cross multiply
    18,079.04x = 27,171.04 × 11,961.92
  4. Step 4: Simplify right side
    18,079.04x = 325,017,806.80
  5. Step 5: Solve for x
    x = 325,017,806.80/18,079.04
  6. Step 6: Final answer
    x = 17,977.60

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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.