Home / 8,342.68-12,505.29-2,791.45

Finding the Fourth Proportional to 8,342.68, 12,505.29 and 2,791.45

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Solution

The fourth proportional to 8,342.68, 12,505.29 and 2,791.45 is: 4,184.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,342.68 : 12,505.29 = 2,791.45 : x
  2. Step 2: Convert to fraction form
    8,342.68/12,505.29 = 2,791.45/x
  3. Step 3: Cross multiply
    8,342.68x = 12,505.29 × 2,791.45
  4. Step 4: Simplify right side
    8,342.68x = 34,907,891.77
  5. Step 5: Solve for x
    x = 34,907,891.77/8,342.68
  6. Step 6: Final answer
    x = 4,184.25

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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.