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Finding the Fourth Proportional to 8,950.68, 13,388.72 and 8,286.37

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Solution

The fourth proportional to 8,950.68, 13,388.72 and 8,286.37 is: 12,395.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.68 : 13,388.72 = 8,286.37 : x
  2. Step 2: Convert to fraction form
    8,950.68/13,388.72 = 8,286.37/x
  3. Step 3: Cross multiply
    8,950.68x = 13,388.72 × 8,286.37
  4. Step 4: Simplify right side
    8,950.68x = 110,943,812.84
  5. Step 5: Solve for x
    x = 110,943,812.84/8,950.68
  6. Step 6: Final answer
    x = 12,395.01

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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.