Home / 8,130.91-12,193.84-2,936.11

Finding the Fourth Proportional to 8,130.91, 12,193.84 and 2,936.11

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Solution

The fourth proportional to 8,130.91, 12,193.84 and 2,936.11 is: 4,403.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.91 : 12,193.84 = 2,936.11 : x
  2. Step 2: Convert to fraction form
    8,130.91/12,193.84 = 2,936.11/x
  3. Step 3: Cross multiply
    8,130.91x = 12,193.84 × 2,936.11
  4. Step 4: Simplify right side
    8,130.91x = 35,802,455.56
  5. Step 5: Solve for x
    x = 35,802,455.56/8,130.91
  6. Step 6: Final answer
    x = 4,403.25

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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.