Home / 8,089.39-11,166.80-5,438.33

Finding the Fourth Proportional to 8,089.39, 11,166.80 and 5,438.33

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Solution

The fourth proportional to 8,089.39, 11,166.80 and 5,438.33 is: 7,507.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,089.39 : 11,166.80 = 5,438.33 : x
  2. Step 2: Convert to fraction form
    8,089.39/11,166.80 = 5,438.33/x
  3. Step 3: Cross multiply
    8,089.39x = 11,166.80 × 5,438.33
  4. Step 4: Simplify right side
    8,089.39x = 60,728,760.77
  5. Step 5: Solve for x
    x = 60,728,760.77/8,089.39
  6. Step 6: Final answer
    x = 7,507.21

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Half scale
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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.