Home / 8,664.57-12,996.74-2,090.72

Finding the Fourth Proportional to 8,664.57, 12,996.74 and 2,090.72

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Solution

The fourth proportional to 8,664.57, 12,996.74 and 2,090.72 is: 3,136.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,664.57 : 12,996.74 = 2,090.72 : x
  2. Step 2: Convert to fraction form
    8,664.57/12,996.74 = 2,090.72/x
  3. Step 3: Cross multiply
    8,664.57x = 12,996.74 × 2,090.72
  4. Step 4: Simplify right side
    8,664.57x = 27,172,581.97
  5. Step 5: Solve for x
    x = 27,172,581.97/8,664.57
  6. Step 6: Final answer
    x = 3,136.06

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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.