Home / 12,122.77-18,171.97-5,104.50

Finding the Fourth Proportional to 12,122.77, 18,171.97 and 5,104.50

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Solution

The fourth proportional to 12,122.77, 18,171.97 and 5,104.50 is: 7,651.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.77 : 18,171.97 = 5,104.50 : x
  2. Step 2: Convert to fraction form
    12,122.77/18,171.97 = 5,104.50/x
  3. Step 3: Cross multiply
    12,122.77x = 18,171.97 × 5,104.50
  4. Step 4: Simplify right side
    12,122.77x = 92,758,820.87
  5. Step 5: Solve for x
    x = 92,758,820.87/12,122.77
  6. Step 6: Final answer
    x = 7,651.62

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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.