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Finding the Fourth Proportional to 8,417.63, 12,626.94 and 4,252.79

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Solution

The fourth proportional to 8,417.63, 12,626.94 and 4,252.79 is: 6,379.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,417.63 : 12,626.94 = 4,252.79 : x
  2. Step 2: Convert to fraction form
    8,417.63/12,626.94 = 4,252.79/x
  3. Step 3: Cross multiply
    8,417.63x = 12,626.94 × 4,252.79
  4. Step 4: Simplify right side
    8,417.63x = 53,699,724.16
  5. Step 5: Solve for x
    x = 53,699,724.16/8,417.63
  6. Step 6: Final answer
    x = 6,379.44

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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.