Home / 8,393.18-12,589.58-3,395.38

Finding the Fourth Proportional to 8,393.18, 12,589.58 and 3,395.38

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Solution

The fourth proportional to 8,393.18, 12,589.58 and 3,395.38 is: 5,092.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,393.18 : 12,589.58 = 3,395.38 : x
  2. Step 2: Convert to fraction form
    8,393.18/12,589.58 = 3,395.38/x
  3. Step 3: Cross multiply
    8,393.18x = 12,589.58 × 3,395.38
  4. Step 4: Simplify right side
    8,393.18x = 42,746,408.14
  5. Step 5: Solve for x
    x = 42,746,408.14/8,393.18
  6. Step 6: Final answer
    x = 5,092.99

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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.