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Finding the Fourth Proportional to 8,184.91, 12,278.16 and 3,253.45

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Solution

The fourth proportional to 8,184.91, 12,278.16 and 3,253.45 is: 4,880.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,184.91 : 12,278.16 = 3,253.45 : x
  2. Step 2: Convert to fraction form
    8,184.91/12,278.16 = 3,253.45/x
  3. Step 3: Cross multiply
    8,184.91x = 12,278.16 × 3,253.45
  4. Step 4: Simplify right side
    8,184.91x = 39,946,379.65
  5. Step 5: Solve for x
    x = 39,946,379.65/8,184.91
  6. Step 6: Final answer
    x = 4,880.49

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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.