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Finding the Fourth Proportional to 18,040.04, 27,060.04 and 11,839.28

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Solution

The fourth proportional to 18,040.04, 27,060.04 and 11,839.28 is: 17,758.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,040.04 : 27,060.04 = 11,839.28 : x
  2. Step 2: Convert to fraction form
    18,040.04/27,060.04 = 11,839.28/x
  3. Step 3: Cross multiply
    18,040.04x = 27,060.04 × 11,839.28
  4. Step 4: Simplify right side
    18,040.04x = 320,371,390.37
  5. Step 5: Solve for x
    x = 320,371,390.37/18,040.04
  6. Step 6: Final answer
    x = 17,758.91

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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.