Home / 11,551.62-17,315.91-4,521.99

Finding the Fourth Proportional to 11,551.62, 17,315.91 and 4,521.99

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Solution

The fourth proportional to 11,551.62, 17,315.91 and 4,521.99 is: 6,778.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,551.62 : 17,315.91 = 4,521.99 : x
  2. Step 2: Convert to fraction form
    11,551.62/17,315.91 = 4,521.99/x
  3. Step 3: Cross multiply
    11,551.62x = 17,315.91 × 4,521.99
  4. Step 4: Simplify right side
    11,551.62x = 78,302,371.86
  5. Step 5: Solve for x
    x = 78,302,371.86/11,551.62
  6. Step 6: Final answer
    x = 6,778.48

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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.