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Finding the Fourth Proportional to 18,436, 27,668.56 and 8,055.04

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Solution

The fourth proportional to 18,436, 27,668.56 and 8,055.04 is: 12,088.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,436 : 27,668.56 = 8,055.04 : x
  2. Step 2: Convert to fraction form
    18,436/27,668.56 = 8,055.04/x
  3. Step 3: Cross multiply
    18,436x = 27,668.56 × 8,055.04
  4. Step 4: Simplify right side
    18,436x = 222,871,357.54
  5. Step 5: Solve for x
    x = 222,871,357.54/18,436
  6. Step 6: Final answer
    x = 12,088.92

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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.