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Finding the Fourth Proportional to 7,951.68, 10,936.80 and 6,376.32

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Solution

The fourth proportional to 7,951.68, 10,936.80 and 6,376.32 is: 8,770.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.68 : 10,936.80 = 6,376.32 : x
  2. Step 2: Convert to fraction form
    7,951.68/10,936.80 = 6,376.32/x
  3. Step 3: Cross multiply
    7,951.68x = 10,936.80 × 6,376.32
  4. Step 4: Simplify right side
    7,951.68x = 69,736,536.58
  5. Step 5: Solve for x
    x = 69,736,536.58/7,951.68
  6. Step 6: Final answer
    x = 8,770.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.