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Finding the Fourth Proportional to 18,431.45, 27,644.44 and 9,068.95

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Solution

The fourth proportional to 18,431.45, 27,644.44 and 9,068.95 is: 13,602.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,431.45 : 27,644.44 = 9,068.95 : x
  2. Step 2: Convert to fraction form
    18,431.45/27,644.44 = 9,068.95/x
  3. Step 3: Cross multiply
    18,431.45x = 27,644.44 × 9,068.95
  4. Step 4: Simplify right side
    18,431.45x = 250,706,044.14
  5. Step 5: Solve for x
    x = 250,706,044.14/18,431.45
  6. Step 6: Final answer
    x = 13,602.08

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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.