Home / 12,519.58-18,779.64-3,754.66

Finding the Fourth Proportional to 12,519.58, 18,779.64 and 3,754.66

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Solution

The fourth proportional to 12,519.58, 18,779.64 and 3,754.66 is: 5,632.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,519.58 : 18,779.64 = 3,754.66 : x
  2. Step 2: Convert to fraction form
    12,519.58/18,779.64 = 3,754.66/x
  3. Step 3: Cross multiply
    12,519.58x = 18,779.64 × 3,754.66
  4. Step 4: Simplify right side
    12,519.58x = 70,511,163.12
  5. Step 5: Solve for x
    x = 70,511,163.12/12,519.58
  6. Step 6: Final answer
    x = 5,632.07

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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.