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Finding the Fourth Proportional to 8,446.51, 12,655.85 and 2,896.79

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Solution

The fourth proportional to 8,446.51, 12,655.85 and 2,896.79 is: 4,340.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,446.51 : 12,655.85 = 2,896.79 : x
  2. Step 2: Convert to fraction form
    8,446.51/12,655.85 = 2,896.79/x
  3. Step 3: Cross multiply
    8,446.51x = 12,655.85 × 2,896.79
  4. Step 4: Simplify right side
    8,446.51x = 36,661,339.72
  5. Step 5: Solve for x
    x = 36,661,339.72/8,446.51
  6. Step 6: Final answer
    x = 4,340.42

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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.