Home / 12,518.30-18,777.52-4,198.96

Finding the Fourth Proportional to 12,518.30, 18,777.52 and 4,198.96

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Solution

The fourth proportional to 12,518.30, 18,777.52 and 4,198.96 is: 6,298.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,518.30 : 18,777.52 = 4,198.96 : x
  2. Step 2: Convert to fraction form
    12,518.30/18,777.52 = 4,198.96/x
  3. Step 3: Cross multiply
    12,518.30x = 18,777.52 × 4,198.96
  4. Step 4: Simplify right side
    12,518.30x = 78,846,055.38
  5. Step 5: Solve for x
    x = 78,846,055.38/12,518.30
  6. Step 6: Final answer
    x = 6,298.46

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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.