Home / 12,195.57-18,294.03-3,874.98

Finding the Fourth Proportional to 12,195.57, 18,294.03 and 3,874.98

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Solution

The fourth proportional to 12,195.57, 18,294.03 and 3,874.98 is: 5,812.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.57 : 18,294.03 = 3,874.98 : x
  2. Step 2: Convert to fraction form
    12,195.57/18,294.03 = 3,874.98/x
  3. Step 3: Cross multiply
    12,195.57x = 18,294.03 × 3,874.98
  4. Step 4: Simplify right side
    12,195.57x = 70,889,000.37
  5. Step 5: Solve for x
    x = 70,889,000.37/12,195.57
  6. Step 6: Final answer
    x = 5,812.68

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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.