Home / 8,382.96-12,569.40-3,455.82

Finding the Fourth Proportional to 8,382.96, 12,569.40 and 3,455.82

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Solution

The fourth proportional to 8,382.96, 12,569.40 and 3,455.82 is: 5,181.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,382.96 : 12,569.40 = 3,455.82 : x
  2. Step 2: Convert to fraction form
    8,382.96/12,569.40 = 3,455.82/x
  3. Step 3: Cross multiply
    8,382.96x = 12,569.40 × 3,455.82
  4. Step 4: Simplify right side
    8,382.96x = 43,437,583.91
  5. Step 5: Solve for x
    x = 43,437,583.91/8,382.96
  6. Step 6: Final answer
    x = 5,181.65

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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.