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Finding the Fourth Proportional to 18,574.94, 27,862.11 and 7,481.34

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Solution

The fourth proportional to 18,574.94, 27,862.11 and 7,481.34 is: 11,221.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,574.94 : 27,862.11 = 7,481.34 : x
  2. Step 2: Convert to fraction form
    18,574.94/27,862.11 = 7,481.34/x
  3. Step 3: Cross multiply
    18,574.94x = 27,862.11 × 7,481.34
  4. Step 4: Simplify right side
    18,574.94x = 208,445,918.03
  5. Step 5: Solve for x
    x = 208,445,918.03/18,574.94
  6. Step 6: Final answer
    x = 11,221.89

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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.