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Finding the Fourth Proportional to 8,469.87, 11,687.04 and 5,323.83

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Solution

The fourth proportional to 8,469.87, 11,687.04 and 5,323.83 is: 7,346.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,469.87 : 11,687.04 = 5,323.83 : x
  2. Step 2: Convert to fraction form
    8,469.87/11,687.04 = 5,323.83/x
  3. Step 3: Cross multiply
    8,469.87x = 11,687.04 × 5,323.83
  4. Step 4: Simplify right side
    8,469.87x = 62,219,814.16
  5. Step 5: Solve for x
    x = 62,219,814.16/8,469.87
  6. Step 6: Final answer
    x = 7,346.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.