Home / 12,442.48-18,658.98-4,121.08

Finding the Fourth Proportional to 12,442.48, 18,658.98 and 4,121.08

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Solution

The fourth proportional to 12,442.48, 18,658.98 and 4,121.08 is: 6,180.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,442.48 : 18,658.98 = 4,121.08 : x
  2. Step 2: Convert to fraction form
    12,442.48/18,658.98 = 4,121.08/x
  3. Step 3: Cross multiply
    12,442.48x = 18,658.98 × 4,121.08
  4. Step 4: Simplify right side
    12,442.48x = 76,895,149.30
  5. Step 5: Solve for x
    x = 76,895,149.30/12,442.48
  6. Step 6: Final answer
    x = 6,180.05

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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.