Home / 8,664.07-12,997.71-2,742.45

Finding the Fourth Proportional to 8,664.07, 12,997.71 and 2,742.45

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Solution

The fourth proportional to 8,664.07, 12,997.71 and 2,742.45 is: 4,114.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,664.07 : 12,997.71 = 2,742.45 : x
  2. Step 2: Convert to fraction form
    8,664.07/12,997.71 = 2,742.45/x
  3. Step 3: Cross multiply
    8,664.07x = 12,997.71 × 2,742.45
  4. Step 4: Simplify right side
    8,664.07x = 35,645,504.80
  5. Step 5: Solve for x
    x = 35,645,504.80/8,664.07
  6. Step 6: Final answer
    x = 4,114.18

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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.