Home / 8,350.81-11,497.89-7,089.25

Finding the Fourth Proportional to 8,350.81, 11,497.89 and 7,089.25

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Solution

The fourth proportional to 8,350.81, 11,497.89 and 7,089.25 is: 9,760.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,350.81 : 11,497.89 = 7,089.25 : x
  2. Step 2: Convert to fraction form
    8,350.81/11,497.89 = 7,089.25/x
  3. Step 3: Cross multiply
    8,350.81x = 11,497.89 × 7,089.25
  4. Step 4: Simplify right side
    8,350.81x = 81,511,416.68
  5. Step 5: Solve for x
    x = 81,511,416.68/8,350.81
  6. Step 6: Final answer
    x = 9,760.90

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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.