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Finding the Fourth Proportional to 8,599.06, 12,913.32 and 5,286.76

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Solution

The fourth proportional to 8,599.06, 12,913.32 and 5,286.76 is: 7,939.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,599.06 : 12,913.32 = 5,286.76 : x
  2. Step 2: Convert to fraction form
    8,599.06/12,913.32 = 5,286.76/x
  3. Step 3: Cross multiply
    8,599.06x = 12,913.32 × 5,286.76
  4. Step 4: Simplify right side
    8,599.06x = 68,269,623.64
  5. Step 5: Solve for x
    x = 68,269,623.64/8,599.06
  6. Step 6: Final answer
    x = 7,939.20

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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.