Home / 8,974.66-12,387.10-5,991.62

Finding the Fourth Proportional to 8,974.66, 12,387.10 and 5,991.62

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Solution

The fourth proportional to 8,974.66, 12,387.10 and 5,991.62 is: 8,269.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,974.66 : 12,387.10 = 5,991.62 : x
  2. Step 2: Convert to fraction form
    8,974.66/12,387.10 = 5,991.62/x
  3. Step 3: Cross multiply
    8,974.66x = 12,387.10 × 5,991.62
  4. Step 4: Simplify right side
    8,974.66x = 74,218,796.10
  5. Step 5: Solve for x
    x = 74,218,796.10/8,974.66
  6. Step 6: Final answer
    x = 8,269.82

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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.