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Finding the Fourth Proportional to 8,634.79, 12,953.40 and 4,252.29

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Solution

The fourth proportional to 8,634.79, 12,953.40 and 4,252.29 is: 6,379.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,634.79 : 12,953.40 = 4,252.29 : x
  2. Step 2: Convert to fraction form
    8,634.79/12,953.40 = 4,252.29/x
  3. Step 3: Cross multiply
    8,634.79x = 12,953.40 × 4,252.29
  4. Step 4: Simplify right side
    8,634.79x = 55,081,613.29
  5. Step 5: Solve for x
    x = 55,081,613.29/8,634.79
  6. Step 6: Final answer
    x = 6,379.03

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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.