Home / 12,942.55-19,409.61-4,175.42

Finding the Fourth Proportional to 12,942.55, 19,409.61 and 4,175.42

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Solution

The fourth proportional to 12,942.55, 19,409.61 and 4,175.42 is: 6,261.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942.55 : 19,409.61 = 4,175.42 : x
  2. Step 2: Convert to fraction form
    12,942.55/19,409.61 = 4,175.42/x
  3. Step 3: Cross multiply
    12,942.55x = 19,409.61 × 4,175.42
  4. Step 4: Simplify right side
    12,942.55x = 81,043,176.74
  5. Step 5: Solve for x
    x = 81,043,176.74/12,942.55
  6. Step 6: Final answer
    x = 6,261.76

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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.