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Finding the Fourth Proportional to 18,684.54, 28,026 and 4,644.27

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Solution

The fourth proportional to 18,684.54, 28,026 and 4,644.27 is: 6,966.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,684.54 : 28,026 = 4,644.27 : x
  2. Step 2: Convert to fraction form
    18,684.54/28,026 = 4,644.27/x
  3. Step 3: Cross multiply
    18,684.54x = 28,026 × 4,644.27
  4. Step 4: Simplify right side
    18,684.54x = 130,160,311.02
  5. Step 5: Solve for x
    x = 130,160,311.02/18,684.54
  6. Step 6: Final answer
    x = 6,966.20

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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.