Home / 10,622.84-15,936.18-4,379.36

Finding the Fourth Proportional to 10,622.84, 15,936.18 and 4,379.36

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Solution

The fourth proportional to 10,622.84, 15,936.18 and 4,379.36 is: 6,569.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,622.84 : 15,936.18 = 4,379.36 : x
  2. Step 2: Convert to fraction form
    10,622.84/15,936.18 = 4,379.36/x
  3. Step 3: Cross multiply
    10,622.84x = 15,936.18 × 4,379.36
  4. Step 4: Simplify right side
    10,622.84x = 69,790,269.24
  5. Step 5: Solve for x
    x = 69,790,269.24/10,622.84
  6. Step 6: Final answer
    x = 6,569.83

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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.