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Finding the Fourth Proportional to 8,907.67, 13,351.89 and 5,789.92

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Solution

The fourth proportional to 8,907.67, 13,351.89 and 5,789.92 is: 8,678.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907.67 : 13,351.89 = 5,789.92 : x
  2. Step 2: Convert to fraction form
    8,907.67/13,351.89 = 5,789.92/x
  3. Step 3: Cross multiply
    8,907.67x = 13,351.89 × 5,789.92
  4. Step 4: Simplify right side
    8,907.67x = 77,306,374.95
  5. Step 5: Solve for x
    x = 77,306,374.95/8,907.67
  6. Step 6: Final answer
    x = 8,678.63

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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.