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Finding the Fourth Proportional to 8,339.63, 11,508.68 and 5,195.81

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Solution

The fourth proportional to 8,339.63, 11,508.68 and 5,195.81 is: 7,170.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,339.63 : 11,508.68 = 5,195.81 : x
  2. Step 2: Convert to fraction form
    8,339.63/11,508.68 = 5,195.81/x
  3. Step 3: Cross multiply
    8,339.63x = 11,508.68 × 5,195.81
  4. Step 4: Simplify right side
    8,339.63x = 59,796,956.39
  5. Step 5: Solve for x
    x = 59,796,956.39/8,339.63
  6. Step 6: Final answer
    x = 7,170.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.