Home / 8,639.43-12,950.93-3,377.81

Finding the Fourth Proportional to 8,639.43, 12,950.93 and 3,377.81

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Solution

The fourth proportional to 8,639.43, 12,950.93 and 3,377.81 is: 5,063.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,639.43 : 12,950.93 = 3,377.81 : x
  2. Step 2: Convert to fraction form
    8,639.43/12,950.93 = 3,377.81/x
  3. Step 3: Cross multiply
    8,639.43x = 12,950.93 × 3,377.81
  4. Step 4: Simplify right side
    8,639.43x = 43,745,699.22
  5. Step 5: Solve for x
    x = 43,745,699.22/8,639.43
  6. Step 6: Final answer
    x = 5,063.49

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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.