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Finding the Fourth Proportional to 8,953.92, 13,429.02 and 3,405.32

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Solution

The fourth proportional to 8,953.92, 13,429.02 and 3,405.32 is: 5,107.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,953.92 : 13,429.02 = 3,405.32 : x
  2. Step 2: Convert to fraction form
    8,953.92/13,429.02 = 3,405.32/x
  3. Step 3: Cross multiply
    8,953.92x = 13,429.02 × 3,405.32
  4. Step 4: Simplify right side
    8,953.92x = 45,730,110.39
  5. Step 5: Solve for x
    x = 45,730,110.39/8,953.92
  6. Step 6: Final answer
    x = 5,107.27

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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.