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Finding the Fourth Proportional to 28,262, 42,393 and 8,806

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Solution

The fourth proportional to 28,262, 42,393 and 8,806 is: 13,209

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,262 : 42,393 = 8,806 : x
  2. Step 2: Convert to fraction form
    28,262/42,393 = 8,806/x
  3. Step 3: Cross multiply
    28,262x = 42,393 × 8,806
  4. Step 4: Simplify right side
    28,262x = 373,312,758
  5. Step 5: Solve for x
    x = 373,312,758/28,262
  6. Step 6: Final answer
    x = 13,209

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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.