Home / 12,356.13-18,536.00-3,589.91

Finding the Fourth Proportional to 12,356.13, 18,536.00 and 3,589.91

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Solution

The fourth proportional to 12,356.13, 18,536.00 and 3,589.91 is: 5,385.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.13 : 18,536.00 = 3,589.91 : x
  2. Step 2: Convert to fraction form
    12,356.13/18,536.00 = 3,589.91/x
  3. Step 3: Cross multiply
    12,356.13x = 18,536.00 × 3,589.91
  4. Step 4: Simplify right side
    12,356.13x = 66,542,488.05
  5. Step 5: Solve for x
    x = 66,542,488.05/12,356.13
  6. Step 6: Final answer
    x = 5,385.38

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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.