Home / 12,495.20-18,745.08-4,174.42

Finding the Fourth Proportional to 12,495.20, 18,745.08 and 4,174.42

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Solution

The fourth proportional to 12,495.20, 18,745.08 and 4,174.42 is: 6,262.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,495.20 : 18,745.08 = 4,174.42 : x
  2. Step 2: Convert to fraction form
    12,495.20/18,745.08 = 4,174.42/x
  3. Step 3: Cross multiply
    12,495.20x = 18,745.08 × 4,174.42
  4. Step 4: Simplify right side
    12,495.20x = 78,249,836.85
  5. Step 5: Solve for x
    x = 78,249,836.85/12,495.20
  6. Step 6: Final answer
    x = 6,262.39

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1.5x scale

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.