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Finding the Fourth Proportional to 18,522, 27,783 and 4,671

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Solution

The fourth proportional to 18,522, 27,783 and 4,671 is: 7,006.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,522 : 27,783 = 4,671 : x
  2. Step 2: Convert to fraction form
    18,522/27,783 = 4,671/x
  3. Step 3: Cross multiply
    18,522x = 27,783 × 4,671
  4. Step 4: Simplify right side
    18,522x = 129,774,393
  5. Step 5: Solve for x
    x = 129,774,393/18,522
  6. Step 6: Final answer
    x = 7,006.50

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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.