Home / 8,147.52-11,231.30-6,376.04

Finding the Fourth Proportional to 8,147.52, 11,231.30 and 6,376.04

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Solution

The fourth proportional to 8,147.52, 11,231.30 and 6,376.04 is: 8,789.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.52 : 11,231.30 = 6,376.04 : x
  2. Step 2: Convert to fraction form
    8,147.52/11,231.30 = 6,376.04/x
  3. Step 3: Cross multiply
    8,147.52x = 11,231.30 × 6,376.04
  4. Step 4: Simplify right side
    8,147.52x = 71,611,218.05
  5. Step 5: Solve for x
    x = 71,611,218.05/8,147.52
  6. Step 6: Final answer
    x = 8,789.33

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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.