Home / 8,455.14-12,680.29-3,259.82

Finding the Fourth Proportional to 8,455.14, 12,680.29 and 3,259.82

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Solution

The fourth proportional to 8,455.14, 12,680.29 and 3,259.82 is: 4,888.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.14 : 12,680.29 = 3,259.82 : x
  2. Step 2: Convert to fraction form
    8,455.14/12,680.29 = 3,259.82/x
  3. Step 3: Cross multiply
    8,455.14x = 12,680.29 × 3,259.82
  4. Step 4: Simplify right side
    8,455.14x = 41,335,462.95
  5. Step 5: Solve for x
    x = 41,335,462.95/8,455.14
  6. Step 6: Final answer
    x = 4,888.80

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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.