Home / 8,489.06-12,731.14-2,942.18

Finding the Fourth Proportional to 8,489.06, 12,731.14 and 2,942.18

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Solution

The fourth proportional to 8,489.06, 12,731.14 and 2,942.18 is: 4,412.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,489.06 : 12,731.14 = 2,942.18 : x
  2. Step 2: Convert to fraction form
    8,489.06/12,731.14 = 2,942.18/x
  3. Step 3: Cross multiply
    8,489.06x = 12,731.14 × 2,942.18
  4. Step 4: Simplify right side
    8,489.06x = 37,457,305.49
  5. Step 5: Solve for x
    x = 37,457,305.49/8,489.06
  6. Step 6: Final answer
    x = 4,412.42

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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.