Home / 7,956.20-11,934.30-2,113.40

Finding the Fourth Proportional to 7,956.20, 11,934.30 and 2,113.40

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Solution

The fourth proportional to 7,956.20, 11,934.30 and 2,113.40 is: 3,170.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.20 : 11,934.30 = 2,113.40 : x
  2. Step 2: Convert to fraction form
    7,956.20/11,934.30 = 2,113.40/x
  3. Step 3: Cross multiply
    7,956.20x = 11,934.30 × 2,113.40
  4. Step 4: Simplify right side
    7,956.20x = 25,221,949.62
  5. Step 5: Solve for x
    x = 25,221,949.62/7,956.20
  6. Step 6: Final answer
    x = 3,170.10

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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.