Home / 11,974.85-17,951.21-6,118.55

Finding the Fourth Proportional to 11,974.85, 17,951.21 and 6,118.55

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Solution

The fourth proportional to 11,974.85, 17,951.21 and 6,118.55 is: 9,172.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,974.85 : 17,951.21 = 6,118.55 : x
  2. Step 2: Convert to fraction form
    11,974.85/17,951.21 = 6,118.55/x
  3. Step 3: Cross multiply
    11,974.85x = 17,951.21 × 6,118.55
  4. Step 4: Simplify right side
    11,974.85x = 109,835,345.35
  5. Step 5: Solve for x
    x = 109,835,345.35/11,974.85
  6. Step 6: Final answer
    x = 9,172.17

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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.