Home / 12,546.24-18,815.86-3,779.88

Finding the Fourth Proportional to 12,546.24, 18,815.86 and 3,779.88

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Solution

The fourth proportional to 12,546.24, 18,815.86 and 3,779.88 is: 5,668.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,546.24 : 18,815.86 = 3,779.88 : x
  2. Step 2: Convert to fraction form
    12,546.24/18,815.86 = 3,779.88/x
  3. Step 3: Cross multiply
    12,546.24x = 18,815.86 × 3,779.88
  4. Step 4: Simplify right side
    12,546.24x = 71,121,692.90
  5. Step 5: Solve for x
    x = 71,121,692.90/12,546.24
  6. Step 6: Final answer
    x = 5,668.77

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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.