Home / 12,408.04-18,616.38-4,621.96

Finding the Fourth Proportional to 12,408.04, 18,616.38 and 4,621.96

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Solution

The fourth proportional to 12,408.04, 18,616.38 and 4,621.96 is: 6,934.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.04 : 18,616.38 = 4,621.96 : x
  2. Step 2: Convert to fraction form
    12,408.04/18,616.38 = 4,621.96/x
  3. Step 3: Cross multiply
    12,408.04x = 18,616.38 × 4,621.96
  4. Step 4: Simplify right side
    12,408.04x = 86,044,163.70
  5. Step 5: Solve for x
    x = 86,044,163.70/12,408.04
  6. Step 6: Final answer
    x = 6,934.55

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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.