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Finding the Fourth Proportional to 18,262.56, 27,340.08 and 13,897.76

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Solution

The fourth proportional to 18,262.56, 27,340.08 and 13,897.76 is: 20,805.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,262.56 : 27,340.08 = 13,897.76 : x
  2. Step 2: Convert to fraction form
    18,262.56/27,340.08 = 13,897.76/x
  3. Step 3: Cross multiply
    18,262.56x = 27,340.08 × 13,897.76
  4. Step 4: Simplify right side
    18,262.56x = 379,965,870.22
  5. Step 5: Solve for x
    x = 379,965,870.22/18,262.56
  6. Step 6: Final answer
    x = 20,805.73

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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.