Home / 12,418.61-18,626.09-4,098.90

Finding the Fourth Proportional to 12,418.61, 18,626.09 and 4,098.90

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Solution

The fourth proportional to 12,418.61, 18,626.09 and 4,098.90 is: 6,147.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,418.61 : 18,626.09 = 4,098.90 : x
  2. Step 2: Convert to fraction form
    12,418.61/18,626.09 = 4,098.90/x
  3. Step 3: Cross multiply
    12,418.61x = 18,626.09 × 4,098.90
  4. Step 4: Simplify right side
    12,418.61x = 76,346,480.30
  5. Step 5: Solve for x
    x = 76,346,480.30/12,418.61
  6. Step 6: Final answer
    x = 6,147.75

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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.