Home / 18,941.11-28,405.41-6,287.94

Finding the Fourth Proportional to 18,941.11, 28,405.41 and 6,287.94

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Solution

The fourth proportional to 18,941.11, 28,405.41 and 6,287.94 is: 9,429.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,941.11 : 28,405.41 = 6,287.94 : x
  2. Step 2: Convert to fraction form
    18,941.11/28,405.41 = 6,287.94/x
  3. Step 3: Cross multiply
    18,941.11x = 28,405.41 × 6,287.94
  4. Step 4: Simplify right side
    18,941.11x = 178,611,596.70
  5. Step 5: Solve for x
    x = 178,611,596.70/18,941.11
  6. Step 6: Final answer
    x = 9,429.84

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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.