Home / 11,839.72-17,762.51-3,519.70

Finding the Fourth Proportional to 11,839.72, 17,762.51 and 3,519.70

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Solution

The fourth proportional to 11,839.72, 17,762.51 and 3,519.70 is: 5,280.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,839.72 : 17,762.51 = 3,519.70 : x
  2. Step 2: Convert to fraction form
    11,839.72/17,762.51 = 3,519.70/x
  3. Step 3: Cross multiply
    11,839.72x = 17,762.51 × 3,519.70
  4. Step 4: Simplify right side
    11,839.72x = 62,518,737.65
  5. Step 5: Solve for x
    x = 62,518,737.65/11,839.72
  6. Step 6: Final answer
    x = 5,280.42

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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.