Home / 8,731.44-12,035.07-6,839.91

Finding the Fourth Proportional to 8,731.44, 12,035.07 and 6,839.91

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Solution

The fourth proportional to 8,731.44, 12,035.07 and 6,839.91 is: 9,427.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.44 : 12,035.07 = 6,839.91 : x
  2. Step 2: Convert to fraction form
    8,731.44/12,035.07 = 6,839.91/x
  3. Step 3: Cross multiply
    8,731.44x = 12,035.07 × 6,839.91
  4. Step 4: Simplify right side
    8,731.44x = 82,318,795.64
  5. Step 5: Solve for x
    x = 82,318,795.64/8,731.44
  6. Step 6: Final answer
    x = 9,427.86

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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.