Home / 10,412.85-15,616.83-3,839.70

Finding the Fourth Proportional to 10,412.85, 15,616.83 and 3,839.70

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Solution

The fourth proportional to 10,412.85, 15,616.83 and 3,839.70 is: 5,758.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,412.85 : 15,616.83 = 3,839.70 : x
  2. Step 2: Convert to fraction form
    10,412.85/15,616.83 = 3,839.70/x
  3. Step 3: Cross multiply
    10,412.85x = 15,616.83 × 3,839.70
  4. Step 4: Simplify right side
    10,412.85x = 59,963,942.15
  5. Step 5: Solve for x
    x = 59,963,942.15/10,412.85
  6. Step 6: Final answer
    x = 5,758.65

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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.