Home / 12,408.99-18,607.29-3,974.45

Finding the Fourth Proportional to 12,408.99, 18,607.29 and 3,974.45

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Solution

The fourth proportional to 12,408.99, 18,607.29 and 3,974.45 is: 5,959.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.99 : 18,607.29 = 3,974.45 : x
  2. Step 2: Convert to fraction form
    12,408.99/18,607.29 = 3,974.45/x
  3. Step 3: Cross multiply
    12,408.99x = 18,607.29 × 3,974.45
  4. Step 4: Simplify right side
    12,408.99x = 73,953,650.70
  5. Step 5: Solve for x
    x = 73,953,650.70/12,408.99
  6. Step 6: Final answer
    x = 5,959.68

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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.