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Finding the Fourth Proportional to 18,644.04, 27,945.87 and 9,291.06

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Solution

The fourth proportional to 18,644.04, 27,945.87 and 9,291.06 is: 13,926.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,644.04 : 27,945.87 = 9,291.06 : x
  2. Step 2: Convert to fraction form
    18,644.04/27,945.87 = 9,291.06/x
  3. Step 3: Cross multiply
    18,644.04x = 27,945.87 × 9,291.06
  4. Step 4: Simplify right side
    18,644.04x = 259,646,754.92
  5. Step 5: Solve for x
    x = 259,646,754.92/18,644.04
  6. Step 6: Final answer
    x = 13,926.53

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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.