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Finding the Fourth Proportional to 8,617.14, 12,928.97 and 5,869.72

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Solution

The fourth proportional to 8,617.14, 12,928.97 and 5,869.72 is: 8,806.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,617.14 : 12,928.97 = 5,869.72 : x
  2. Step 2: Convert to fraction form
    8,617.14/12,928.97 = 5,869.72/x
  3. Step 3: Cross multiply
    8,617.14x = 12,928.97 × 5,869.72
  4. Step 4: Simplify right side
    8,617.14x = 75,889,433.79
  5. Step 5: Solve for x
    x = 75,889,433.79/8,617.14
  6. Step 6: Final answer
    x = 8,806.80

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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.