Home / 8,112.63-12,171.10-2,566.07

Finding the Fourth Proportional to 8,112.63, 12,171.10 and 2,566.07

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Solution

The fourth proportional to 8,112.63, 12,171.10 and 2,566.07 is: 3,849.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.63 : 12,171.10 = 2,566.07 : x
  2. Step 2: Convert to fraction form
    8,112.63/12,171.10 = 2,566.07/x
  3. Step 3: Cross multiply
    8,112.63x = 12,171.10 × 2,566.07
  4. Step 4: Simplify right side
    8,112.63x = 31,231,888.16
  5. Step 5: Solve for x
    x = 31,231,888.16/8,112.63
  6. Step 6: Final answer
    x = 3,849.79

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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.