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Finding the Fourth Proportional to 7,956.10, 11,905.80 and 6,927.40

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Solution

The fourth proportional to 7,956.10, 11,905.80 and 6,927.40 is: 10,366.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.10 : 11,905.80 = 6,927.40 : x
  2. Step 2: Convert to fraction form
    7,956.10/11,905.80 = 6,927.40/x
  3. Step 3: Cross multiply
    7,956.10x = 11,905.80 × 6,927.40
  4. Step 4: Simplify right side
    7,956.10x = 82,476,238.92
  5. Step 5: Solve for x
    x = 82,476,238.92/7,956.10
  6. Step 6: Final answer
    x = 10,366.42

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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.