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Finding the Fourth Proportional to 7,671.95, 11,507.93 and 4,231.07

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Solution

The fourth proportional to 7,671.95, 11,507.93 and 4,231.07 is: 6,346.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,671.95 : 11,507.93 = 4,231.07 : x
  2. Step 2: Convert to fraction form
    7,671.95/11,507.93 = 4,231.07/x
  3. Step 3: Cross multiply
    7,671.95x = 11,507.93 × 4,231.07
  4. Step 4: Simplify right side
    7,671.95x = 48,690,836.23
  5. Step 5: Solve for x
    x = 48,690,836.23/7,671.95
  6. Step 6: Final answer
    x = 6,346.61

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Similar ratio
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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.