Home / 12,074.36-18,100.20-6,229.40

Finding the Fourth Proportional to 12,074.36, 18,100.20 and 6,229.40

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Solution

The fourth proportional to 12,074.36, 18,100.20 and 6,229.40 is: 9,338.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,074.36 : 18,100.20 = 6,229.40 : x
  2. Step 2: Convert to fraction form
    12,074.36/18,100.20 = 6,229.40/x
  3. Step 3: Cross multiply
    12,074.36x = 18,100.20 × 6,229.40
  4. Step 4: Simplify right side
    12,074.36x = 112,753,385.88
  5. Step 5: Solve for x
    x = 112,753,385.88/12,074.36
  6. Step 6: Final answer
    x = 9,338.25

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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.