Home / 8,318.25-12,477.38-2,162.25

Finding the Fourth Proportional to 8,318.25, 12,477.38 and 2,162.25

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Solution

The fourth proportional to 8,318.25, 12,477.38 and 2,162.25 is: 3,243.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.25 : 12,477.38 = 2,162.25 : x
  2. Step 2: Convert to fraction form
    8,318.25/12,477.38 = 2,162.25/x
  3. Step 3: Cross multiply
    8,318.25x = 12,477.38 × 2,162.25
  4. Step 4: Simplify right side
    8,318.25x = 26,979,204.09
  5. Step 5: Solve for x
    x = 26,979,204.09/8,318.25
  6. Step 6: Final answer
    x = 3,243.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.