Home / 12,122.98-18,182.41-3,355.85

Finding the Fourth Proportional to 12,122.98, 18,182.41 and 3,355.85

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Solution

The fourth proportional to 12,122.98, 18,182.41 and 3,355.85 is: 5,033.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.98 : 18,182.41 = 3,355.85 : x
  2. Step 2: Convert to fraction form
    12,122.98/18,182.41 = 3,355.85/x
  3. Step 3: Cross multiply
    12,122.98x = 18,182.41 × 3,355.85
  4. Step 4: Simplify right side
    12,122.98x = 61,017,349.69
  5. Step 5: Solve for x
    x = 61,017,349.69/12,122.98
  6. Step 6: Final answer
    x = 5,033.20

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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.