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Finding the Fourth Proportional to 18,818, 28,227 and 6,506

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Solution

The fourth proportional to 18,818, 28,227 and 6,506 is: 9,759

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818 : 28,227 = 6,506 : x
  2. Step 2: Convert to fraction form
    18,818/28,227 = 6,506/x
  3. Step 3: Cross multiply
    18,818x = 28,227 × 6,506
  4. Step 4: Simplify right side
    18,818x = 183,644,862
  5. Step 5: Solve for x
    x = 183,644,862/18,818
  6. Step 6: Final answer
    x = 9,759

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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.