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Finding the Fourth Proportional to 8,568.36, 11,829.96 and 5,739.39

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Solution

The fourth proportional to 8,568.36, 11,829.96 and 5,739.39 is: 7,924.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,568.36 : 11,829.96 = 5,739.39 : x
  2. Step 2: Convert to fraction form
    8,568.36/11,829.96 = 5,739.39/x
  3. Step 3: Cross multiply
    8,568.36x = 11,829.96 × 5,739.39
  4. Step 4: Simplify right side
    8,568.36x = 67,896,754.12
  5. Step 5: Solve for x
    x = 67,896,754.12/8,568.36
  6. Step 6: Final answer
    x = 7,924.12

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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.