Home / 12,255.83-18,385.44-3,933.89

Finding the Fourth Proportional to 12,255.83, 18,385.44 and 3,933.89

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Solution

The fourth proportional to 12,255.83, 18,385.44 and 3,933.89 is: 5,901.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255.83 : 18,385.44 = 3,933.89 : x
  2. Step 2: Convert to fraction form
    12,255.83/18,385.44 = 3,933.89/x
  3. Step 3: Cross multiply
    12,255.83x = 18,385.44 × 3,933.89
  4. Step 4: Simplify right side
    12,255.83x = 72,326,298.56
  5. Step 5: Solve for x
    x = 72,326,298.56/12,255.83
  6. Step 6: Final answer
    x = 5,901.38

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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.